2004 chevy half ton truck 2 wheel drive.... i have a 408 ... i have flat top postons 11:1 i m running afr head's 225/62cc .. roller rockers 1.8 ... the block has NOT been decked...

Brand: Crane Cams
Product Line: Crane Quick Lift Hydraulic Roller Camshafts
Part Type: Camshafts
Part Number: CRN-1449561
Cam Style: Hydraulic roller tappet
Basic Operating RPM Range: 2,000-6,200
Intake Duration at 050 inch Lift: 216
Exhaust Duration at 050 inch Lift: 224
Duration at 050 inch Lift: 216 int./224 exh.
Advertised Intake Duration: 278
Advertised Exhaust Duration: 286
Advertised Duration: 278 int./286 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.551 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.551 in.
Valve Lift with Factory Rocker Arm Ratio: 0.551 int./0.551 exh. lift
Lobe Separation (degrees): 115
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.
Computer Controlled Compatible: Yes
Quantity: Sold individually.

it run's on 100ll airplain fuel.... it puts out 550 hp and about 600ft lbs of torque ...

i want to put the bigest cam in that the head can hold... i know i will lose my low end power... but i hope to make it up with good gear's rear end ... and hope by the end of summer i have a 250 shot of nos to it