Last night I stumbled across the Comp Cams warranty card for my motor. BACKSTORY .. the previous owner passed away and the motor was redone and ready to install but the builder retired so I have little info. The basics are as follows ... 390 bored .030, 428 crank, 67 GT heads ( assuming stock valve sizes ), reproduction 428 CJ cast exhaust manifolds, Edelbrock Performer RPM intake, Holley carb. The warranty card has the following info: Part# 33-226-4, Grind# FB 270H - 10, SER# WT9086 - 16. It will be installed in a 66 Fairlane GT with street tires. The previous owner told the builder that he wanted to go somewhere in the 13's ( 3:50 gears ) with a nice sounding rump rump idle. Will this cam fit the bill and are there any guesstimates on HP ? Thanks. Bob
Here are some other numbers:
Gross valve lift ... .519 ( Intake and Exhaust )
Duration @ .006 Tappet lift .... .270 ( Intake and Exhaust )
Lobe Separation ... 110.0