http://forums.corral.net/forums/5-0-5-8-engine-tech/1006888-racer-xs-427-dyno-results.html

 

For a time Avenger was using Canfield 195 castings. Who knows what casting that was on that motor dyno'ed in '08.

 

chinese casting if that means anything to you (avenger) AFR 205 with the 8019 springs would be my choice

 

im just looking for best bang for the buck. Trying to stay under $1900 for a set.

 

TW 11r 205s?

 

I've already bought the rotating assembly so cant go with TW

 

I have some new 7/16 afr specific harland sharp 1.6 rockers for sale if you're interested..get new for the price of used haha.. just throwing that out there

 

ive already got rockers. the only things im missing is heads, push rods and gasket kit. Ive got a holley 750 dp carburetor but not sure if its going to big enough for the motor. its going to be 421 CI with 11:1 CR

 

Don't go trying to "save" money building a motor. Do the right thing,,,,,, U.S.A. Do it once do it right

 

I'm new to carbs so i can't really tell you lol..I'm gonna run a mighty demon 750 on my 11 to 1 331" with TW 11r 205s and a super vic lol

 

If you are looking for a budget head you can always go with RHS 215. they used to be an Australian company (pro topline) before getting bout out by comp cam.

The 215 will slightly out flow the AFR205 on the intake up to .600 lift. But the AFR will outflow the exhaust. but you are looking at over $400 savings. Or you can get them bare and put better hardware in and still end up being cheaper.

I havnet had my car to the track yet but there is a guy that posts here named shifter that runs a set on a 363 build that runs 9s na.. so the potential is there..

 

That's my buddy Lou, he lives a couple miles away from me.. he does have the RHS 215 heads but his are ported by Mike Curcio from MCRP, milled about .070" and have titanium valve spring retainers and set up for the solid roller cam he spins to 7600rpm, so they are far from out of the box but like you said they do have good potential although he has quite a bit of cash invested in his...

 

What brand carb does everyone recommend. I haven't actually payed for the holley 750 yet. A buddy of mine has one he said he would sell. I found a preform 950cfm race carb forsale looks pretty new for $450

 

I know lots of guys are happy with prosystems carbs. Patrick seems to really know his stuff.

I'm no expert, but I would think a 950 would be much better for your combination than a 750. I have no experience with proform, however.

Good luck!

Jeff

 

My buddy had a holley hp series that worked really well and he loved it. Street/strip setup. Reasonably priced. Lou tells me the Demons work well too. Again, I don't know much about carbs. Maybe pro systems and quick fuel and such are on "the next level" compared to what I'm talking about..maybe I'll just STFU and listen lol