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Old 06-03-2012, 12:00 AM
martin7844 martin7844 is offline
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Porting 396 chev oval port heads to rectangular port

Hello. Fellow Hot Rodders. I have a 1969 Chev BBC with original Oval Port heads. Can I port-grind out enlarge the oval ports to match a rectangular port tunnel ram Intake, with two 650cfm carbs. I also want to install a Comp Cam 11-213-3 Magnum Hydraulic flat tappet camshaft with .550 " int./ .550 exh. lift, & 292 duration. Will this set up dramatically increase my HP & torgue. THX, Marty.
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