Big Mutha' Thumpr 243/257 Hydraulic Roller Cam K Kit for Pontiac 265-455

Big Mutha' Thumpr™ 243/257 Hydraulic Roller Cam K Kit for Pontiac 265-455. Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
Grind Number: 299THR7
Engine Family: Pontiac 265-455 c.i. 8 Cyl. (1955-1981)
RPM Operating Range: 2,300-6,100
Cam Type: Hydraulic Roller
Lifter Style: Hydraulic Roller
Camshaft Series: Thumpr
Camshaft Gear Attachment: 1-Bolt
Usage: Street/Strip
Valve Springs Required: Yes
Camshaft Material: Billet Steel
California Proposition 65: WARNING: Cancer and Reproductive Harm
Advertised Intake Duration: 299
Advertised Exhaust Duration: 319
Intake Duration at .050 Inch Lift: 243
Exhaust Duration at .050 Inch Lift: 257
Intake Valve Lift: 0.532
Exhaust Valve Lift: 0.519
Lobe Separation: 107
Assembly Lubricant Included: No