I’m not familiar with the fuel injection system, but i posted a few links to give you ideas of 302 builds. There are many ways to reach your goal.

Official 302 N/A dyno numbers thread!

This thread is for 302 N/Aonly numbers!!!!!! This is a thread to show what a stock bore/stroke 302 can muster. Please list all supporting mods, exhaust, fuel, induction, accessories running, headers, clutch fan/electric fan, yadda, yadda. Bone stock is fine, Wild is fine, but must be a stock...

www.corral.net

302/306 TFS 11r combo/Results thread

Post them here all of your 302/306ci 11r headed combos. Specs Results Numbers Please share I know there is the stock shortblock thread but why not a dedicated 11r thread?

www.corral.net

372rwhp/349rwtq Stock Bottom End 302 N/A

Hi gents! Took the old 302 to the dyno today since installing my most recent cam from Ed Curtis @ FTI. Just a little background on my previous setup - a previous cam from Ed (from an old combo with AFR 165 heads and a Cobra intake) with Trick Flow 190 11Rs, Holley SM2, 1-3/4 used MAC...

www.corral.net

 

The fuel injection system that he’s looking at isn’t quite like the fuel injection that most efi mustang guys are used to. I think it’s compribale to Chevy’s old TBI system, which is like a carburetor that’s electronically controlled. You don’t have an injector for each cylinder. Instead you get a couple of jets that squirt. That being said, I’d probably stick with a carburetor. The bang for buck probably isn’t there with the efi kit. Also, his 302 is starting with an advertised horsepower rating of 137 crank horsepower. So the 300 rear mark might be a little tougher. The Edelbrock E streets don’t have valve springs, etc, that are strong enough for roller camshafts, but they’re good enough for flat tappet cams. That’s why you don’t see many mustang guys recommending them because latemodel mustangs have roller camshafts. A turbo or supercharger would be the cheapest way to add power, but you might have a hard time finding one for your setup.
For the peanut gallery

https://www.automobile-catalog.com/make/ford_usa/maverick_usa/maverick_usa_2-door_sedan/1976.html

Edelbrock 35760K: Pro-Flo 4 EFI System Fuel Kit - JEGS High Performance

Buy Edelbrock 35760K at JEGS: Edelbrock Pro-Flo 4 EFI System Fuel Kit. Guaranteed lowest price!

www.jegs.com

Most guys starting with H.O. 302’s that use TFS 170cc type topends make 270-310 rear horse. The H.O. mustangs started with around 200 rear horse so they “only” need another 100 horsepower to reach the 300 target.

 

Your goal is very reach-able. Poke around. Formulate a plan. Lots of info here to help get you started. Are strokers an option? Turbo? You guys have sugar based fuel all over don't you? Is it high octane? What's the use goal? Driver? Racer?

 

Edelbrock Performer heads with good valve springs are good heads. I'm not sure what the difference between the E-Street, and the Performer series heads are. I have a set of Performer heads on my car, but on my 331 it only puts out 327 rwhp and 357 lbs of torque. The 170cc heads are a restriction. You don't need a stroker to make that kind of power.

With that said, I personally would not buy any 170cc head and instead invest in the Trick Flow 11r 190. It will offer you up to date technology, and forward thinking for a 302. Trick Flow Twisted wedge heads are great heads, including the 170cc versions, but those are outdated. Saleen S351 Mustangs originally used Edelbrock Performer 170cc heads, but switched to Trick Flow heads because they are a much better flowing design for around the same price.

The Trick Flow 11r 190 heads will give you almost 100 more horsepower than the 170cc Edelbrock heads for around the same price. Plus you'll get better piston to valve clearance for the stock pistons.

 

Are you using a 190cc intake runner?

 

With the high octane ethanol you have I'd get a set of Promaxx heads (almost half the cost of 11Rs), an used H.O. roller cam, 1.7 roller rockers, conversion roller lifters, a FRPP Victor Jr and put 7-9 psi into it. You'll obliterate your goals.

 

331/347 with edelbrock or AFR 185 heads and an RPM air gap with 650 double pumper. a decent off the shelf cam and you are easily 350 to 400hp.

 

If you’re able to swing buying link bar style lifters that will Open doors to lots of cam options. The tfs stage 2 is a good off the shelf cam to make 300+ hp. The trickflow 11r is a damn fine head and will allow room to grow later. I’d Go standalone efi any day before using a glorified tbi. That or stick to the carb, a 4 barrel though.
Do you have a general budget in mind?

 

Hi guys,

Yes, we have Ethanol all the county. It is around 110 octanes. And fortunately it is cheaper in the state I live. But the problem in the compression ratio, engines that use Ethanol need to have more compression ratio. Once the bottom of my engine is new, I am not planning to change piston to increase the compression or stroke it, and I didn´t find heads with smaller chambers.

My goal is to have a strong car to drive around with up to date technology in the engine. Torque starting +/-1500 and reaching 6000~6500 maximum.

90lxwhite: The Edelbrock Pro Flo 4, if I am not wrong, has a Victor Junior Intake in the kit, 8 fuel injectors. It is 1000cfm, I don’t know the pressure it is measured, and support until 550 HP according to the description. Seems to be more than I need.


Tjm73: I was looking the Promaxx heads at summit website, and it is almost the same price of Trickflow 11R. What is the Promaxx’s model you are talking about?
What is need change for use H.O. roller cam in my engine? What is the benefit using roller can?


96pushrod: What is the advantage of this link bar style lifters? As I am not planning to sell the car and I don’t have a rush to finish this project I don’t have any l budget in my mind. But would be great do not pass 5k.

 

Promaxx heads are priced per pair. AFR heads are priced each on Summit.

They are not the same class head. The AFR is a better head. The Promaxx head is a budget head. I'm always on a budget so I lean towards budget stuff. The owner of Promaxx was spoken well of by a well-respected member here so I would give them a chance personally.

 

Well if the cheaper head hits the target, what's the loss? Keep nearly a grand in his pocket and still meet his goal. I guess the real question is do you want another 100 hp (or so) or to keep a grand in your pocket? And I'm not convinced that 11Rs will deliver an additional 100 hp on and otherwise the same engine.

 

After looking at the Pro-max website I think those heads might be a good option. I would really like to see some dyno numbers on them. The only reason I would say go for the 11R heads is they offer more room to grow, and will give a noticeable horsepower difference over the none CNC Pro-Maxx heads.

 

And the E-street, they are cheaper than Performer rpm and have the same specs...

About budget heads, Promaxx and Procomp? Procomp is easy to find in my country

Comparing Afr165 to 11r 190? The trickflow take much advantage for the bigger intake?


With the importation tax, I found here

Procomp 190cc and E-Street 170cc for almost the same price,

EStreet's price +20% for a Performer rpm 190 or 170cc

EStreet's price + 30% for an AFR165

 

With the E-Street, you will need to upgrade the valve springs. With more affordable heads, the big difference is the valve train hardware. You will hit your horsepower goals with the E-Street, but buy the matching springs for your camshaft.

The biggest complaints about the E-Streets are the valve springs, because the springs will break with a performance camshaft.

The Pro-Maxx has better valve springs, and is 180cc. So you might be better off getting the Pro-Maxx if you don't want to replace the springs. I'm a big fan of the 11R Trick Flow heads, but you might want to try the Pro-Maxx before pulling the trigger on the Edelbrock.

Determine the shipping on the Pro-Maxx vs the Edelbrock. It might make up the difference on replacing the valve springs.

 

The only downside to the ProMaxx heads is I've not seen any race results, independent dyno results or independent test results of any kind. I'd like to see that.

 

I am not planning to use a performance camshaft now, but we never know about the future.... The performance virus bite you, and then you become addicted.. .heheh

So E-street is not in my list anymore.

Have any of you used Procomp? There are many of this heads available in the Brazilian market.


I think this AFR costing 30% more than the E-street seems to be a good choice. My concern now is about the 165cc, is it a future limitation for power?

 

RedMaverick. I have a 150,000 mile, pure stock 302 short block from a 93 Mustang. I put on heads and intake from a bigger engine that I no longer have. I used what I had on hand. I have TFS 11r 205 heads with the big 66cc chambers. With the big chamber and stock short block, my compression is maybe 9:1, could even be less. I have an RPM Air Gap intake and 1 5/8" headers. It has an Anderson B4 cam which is the exact same thing as a TFS Stage 2 cam. It made 321 hp and 300 lb ft of tq on a chassis dyno. Runs good and strong even though people will say the heads are to big, you don't have enough compression, headers are to small - etc......
This build fits right in your requests of 300-330 rwhp. The cam specs are 224/232@ 0.050, .542/.563, 112 LSA
You can meet your goals pretty easily. Keep us posted on your results.

 

Hi Guys,
Is it the link bar lifters kit?

Howards Cams CL221275-12 Howards Cams Retro-Fit Hydraulic Roller Camshaft and Lifter Kits | Summit Racing

Free Shipping - Howards Cams Retro-Fit Hydraulic Roller Camshaft and Lifter Kits with qualifying orders of $99. Shop Camshaft Kits at Summit Racing.

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This Howards cam are good?