Professional Answer to Exhaust Size Question 2.5" vs 3"

Dustedu2 said
Here it is and Thanks much!
Cam StyleMechanical roller tappetBasic Operating RPM Range2,500-6,500Intake Duration at 050 inch Lift242Exhaust Duration at 050 inch Lift248Duration at 050 inch Lift242 int./248 exh.Advertised Intake Duration280Advertised Exhaust Duration286Advertised Duration280 int./286 exh.Intake Valve Lift with Factory Rocker Arm Ratio0.570 in.Exhaust Valve Lift with Factory Rocker Arm Ratio0.576 in.Valve Lift with Factory Rocker Arm Ratio0.570 int./0.576 exh.Lobe Separation (degrees)110Intake Valve Lash0.016 in.Exhaust Valve Lash0.018 in.Computer-Controlled CompatibleNoGrind NumberCRS XR280R-10

that cam in a 4"stroker should make some serious midrange power:cheers:
i have that same cam in my 3.31"stroke 340 and its pulling hard in the midrange and gets mean at the top end. a friend has that grind in a 3.75"stroke sbc and it runs hard with big traction isues on the street, i cant even imaginge how much fun that cam would be with a 4" stroke:toothy10: