How do you know that?Yeah i know and the new afr's are just that new. Not much data but looks good on paper. I want the one with the bigger cross section but need to stay in that price range and 20 degree. Want to make around 850 on motor.
What RPM are you going to turn? 23deg head with 3.4mca never heard of it ! ami i missing something here? we are talking about a SBC ?Just going by the wallace calculator it said i need a min cross section of 3.4. I also have talked to several people and they said that it was more important to get cross section right than going by flow numbers. I dont think i will find a head with that much cross section but was tring to get the closest to it. What would you recommend. A friend has some 240 high ports runs 5.60 at 120 which is right at 840 in a 3000 lb car.
X2...438ci it will have to be well thoughtout! This becomes the problem, big cubic inch with wanting big HP numbers, but not having everthing it's going to take to get there. Im thinking sbf here(?) Alittle easier than sbc to do, but still. I would think it would need a much larger head when finished, 250-265cc(2.8-3.2sq.In.)+ depending on the combo.
Not on the up and up with AFR Ford stuff...
Thank God somebody that makes sense..! Everybody is making 850hp this days with off the self CNC 20 degree heads for under $4000 dollars :-DawJust Friday I had a 363cid with my small port Edelbrock 7721 (255cc/2.150 valve) make 1.90 hp/cid on a Stuska with a stock manifold and 850 carb.
Your going to need a shallower valve to accomplish your goals, or a 10,000 set of 20 degree heads..