So get around the limitation when it comes into power I need to do some porting or? Is that the best option? Or is to stroke it more to 4.000 instead of 3.580
Air flow "cfm" basically is power , engine size is at what rpm that power is made Eg. 450hp 371cid 2500-6000 rpm vs 450hp 410cid 1800-5300 rpm. So top end cam, heads, bores size, cr, carb, etc.. = hp, Bottom end, displacement = powerband rpm.
Heads more than anything determine HP capability, cam and intake and exhaust track is just gonna determine what % of that air flow is gonna be used.
The rule of thumb is 2hp per head cfm, but with street cam and cr it's more like 1.9 for 10:1cr 285 cam, 1.8 for like 9:1cr 270 cam etc..
