Quote:
Originally Posted by Vettezuki
Ok, got it. Out of curiosity, BRUTAL sugested 190-210 and you're suggesting 185-195. What's the theory and why did you guys select slightly different ranges of intake runners. Basically I'm targeting 195 since it's inside both your ranges.
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I think 210cc is too much for our little 306 with the rpm range we are in. If this was a 347 or if we were going to change the cam and spin this 306 to 8000 then I would agree that we should run 200-210 but not with the 306 and a max of 6500rpms.
This engine is equivalent to what I'm running in the Cobra with the exception of a root instead of a centrifugal. I'm running AFR 165 heads and a Crane 2040 and it pulls strong to 6000rpms. On a chassis dyno I put down 433rwhp with the supercharger belt slipping at 5300rpms. I would have put AFR 185 heads on originally but I still had the stock bottom end and the stock pistons won't clear the larger valves in them. I now have forged pistons that will clear the larger valves so an upgrade is in order one day.