Could a 65 396 pass a PV
Could a 65 396 with a 4.56 & close ratio 4 speed pass a pv test with a nos L88 cam ?
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Re: Could a 65 396 pass a PV
I doubt it. That cam has a very knarly idle at not much less than 1500. The OE cam has a little lope at 900.
The L-88 cam was designed for headers and open exhaust. It has an extreme amount of overlap. With manifolds and mufflers all that overlap kills low end torque and doesn't really help top end power. With the OE cam, manifolds and mufflers the engine will make more torque/power in the low end and little if any more on the top end. In fact the OE cam might even make more top end power. The 560 GHP rating that most of use are familiar with was with a properly designed unmuffled racing exhaust system and probably some head massaging.
Race cams that are designed to operate best at 4000-7000 revs with a properly designed racing exhaust system are not a very good idea for a road engine. I'm sure you would find the driving experience much better with the OE cam, which is an excellent design for a high performance road engine.
Duke -
Re: Could a 65 396 pass a PV
Nope! We PV'd a '66 425 with one of those cams, had to add MSD box, plug wires, and coil to get it to idle at 900 rpm's. (See Judging Reference Manual "no performance enhancing additions", another rule change that my shenanigans caused
) No way that small an engine with that much overlap will idle much below 1,500 rpms
Dick WhittingtonComment
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Re: Could a 65 396 pass a PV
Thanks Duke & Dick just wishful thinking . I have a new GM L88 and a new GM L78 cam . I just love the sound of the big cams .Comment
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Re: Could a 65 396 pass a PV
No one ever accused you of being able to talk either DW.
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