I was wondering at what level of horsepower the trick flows become more advantageous over the RPMs. A lot of people are using the trick flow heads in the 550 plus horsepower level but how do they perform around 500hp.
This is a mute point. You don't avoid good or better heads that are of the same configuration because you plan to make less power. I.e...2 standard port heads.
Wondering how the heads would differ around the 500 hp mark.
The heads with the better flow numbers will make 500 easier. The heads with the better flow under the curve will outperform the other head. As said, just download and eval the flow bench charts.
Going to run a roller lifters and a cam in the 230s 240s duration range @.050lift? I am wondering if I should go the trick flows even though my compression would be on the high side.
10.5 isn't on the high side, 11 or 11.5 is. When you purchase you cam or have it cut make sure to mention in addition to all the other info you give them, that you plan to run pump fuel. [email protected] and a 112LSA will make 500hp / >500tq in a 440, more in a 451, and will tolerate pump fuel at 92 octane all day long. Timing curve matters too. It's not just about the total.
