Thanks so much for all the responses. This W72 is 4-speed is all stock, including the intake. As for the exhaust, using the stock exhaust manifolds, but then the 2.5” stainless Pypes X-pipe, along with their down pipes (so, no factory Y-pipe) and then the Pypes Turbo Pro mufflers.
Interesting comment, Cliff about the loss of power above 5200 rpm. Since all stock, but rebuilt Quadrajet with the larger 800-CFM carb, standard on the W72, agree some power capacity should remain, though not more than would be expected from a low compression 400, such as this one.
Leaning toward the recommended Crower 60240, as it does seem to have a bit more power down low than the Summit 2800. Good to hear that the 60240 has a smooth idle and has a hint of a larger cam in tone. Would still like to hear one though, a recording of it, if anyone is running this cam on their car. Kindly advise.
Thanks so much!
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