[REX347]

If you are refering to the 185cc heads as the Stage 1's they must be similar to the old stage 2's. These are the flow numbers for my TW stage 2 heads done by TEA.

Lift Intake Exhaust
.100 66.7 51.6
.200 146.9 110.8
.300 222.4 157.2
.400 270.5 196
.500 300.5 221.9
.600 304.5 239.5
.700 306.1 248.0

This is what I am gonna use to top off my 331.

Rex

 

[REX347]

With the right supporting combo, these heads should rip at higher rpms on your 331!

Well these heads are the reason I built a 331. Was orginally gonna be a mild 306 . Heads flowed too well. Decided to go with a high compression solid roller 331

331, 13:1 compression, Comp Camps .672/.672 260/268 106 lobe sep, Super Vic intake. What ya think

Rex

 

[REX347]

BTW found my flow sheets and update the flow specs up to .700 Things are still climbing on the exhuast kinda leveling off on the intake but still gradually climbing.

.700 306.1 248.0

 

[REX347]

I hope so. Only made 485 last time out. But spun rodbearings the same time. So who know. I think 575 is more realistic. Dyno2k and EA are both saying close to 590.

Rex

 

[REX347]

they 185's are over 1800. I would also upgrade to the titanium retainers when you have em done.

Rex

 

[REX347]

Why not run longtubes? 10.1 compression is a good safe compression for pump gas.

Rex

 

[REX347]

Has alot more to do with than just Fuel pump. You could go as high as 10.5:1 with aluminum heads.

Rex