Rest of combo as follows: 351w, ~9-9.5:1, Weiand Stealth, Trick Flow TW heads, Heddman headers/2.5" exhaust, 650-700 cfm Holley based carb (street avenger or demon, I think... though I might give mechanical secondaries a shot). I plan to make power to about 6,000 rpm, but I also want the cam to have decent street manners.
I have my eyes on the compcams xe268h, which specs out as follows:
Advertised Intake Duration: 268
Advertised Exhaust Duration: 280
Duration at 050 inch Lift: 224 int./230 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.510 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.512 in.
LSA: 110
RPM range 1600-5800
Compcams recommended that and the xe262H, which looks like:
Advertised Intake Duration: 262
Advertised Exhaust Duration: 270
Duration at 050 inch Lift: 218 int./224 exh
Intake Valve Lift with Factory Rocker Arm Ratio: 0.513 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.520 in.
Lobe Separation (degrees): 110
RPM range 1400-5600
(strangely, summit seems to list another xe262h-10, with the same duration specs but .493/.500 i/e lift, basically the same rpm range).
The maximum lift the springs can handle is .540, which both of these cams clear, but both get pretty close to that limit if I were to mill .020 off the bottom of the heads (and I wanted to mill a bit more than that).
I know Lunati and Crane have similar grinds. Was wondering if anyone had a cam that woudl work better for me than the 268 and why?
I have my eyes on the compcams xe268h, which specs out as follows:
Advertised Intake Duration: 268
Advertised Exhaust Duration: 280
Duration at 050 inch Lift: 224 int./230 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.510 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.512 in.
LSA: 110
RPM range 1600-5800
Compcams recommended that and the xe262H, which looks like:
Advertised Intake Duration: 262
Advertised Exhaust Duration: 270
Duration at 050 inch Lift: 218 int./224 exh
Intake Valve Lift with Factory Rocker Arm Ratio: 0.513 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.520 in.
Lobe Separation (degrees): 110
RPM range 1400-5600
(strangely, summit seems to list another xe262h-10, with the same duration specs but .493/.500 i/e lift, basically the same rpm range).
The maximum lift the springs can handle is .540, which both of these cams clear, but both get pretty close to that limit if I were to mill .020 off the bottom of the heads (and I wanted to mill a bit more than that).
I know Lunati and Crane have similar grinds. Was wondering if anyone had a cam that woudl work better for me than the 268 and why?