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I am lucky I guess, i have three sets of C4s that are almost perfect

October 3 2017 at 4:33 PM
Bill Ballinger  (Login 65billgal)

Response to Flow

I just did a little bit of work on mine really just jot the oily crap out and they did 185 with 1.58's. I have a theory on C4s too, they were non emissions and most didn't even have PCV. The C8s ran as hot as a two peckered Billy Goat, so Ii bet that is the reason more than the unibody cars to keep them from warping and sooting up, plus corrosion from Tetra gas. My three sets are 64 castings. all are very clean. I have just put them on in place of C8s and really picked up a considerable kick in the pants.

For the most part, unless its down to 3-5 hp, exhaust just wants out, good headers and non restrictive exhaust really works.

This message has been edited by 65billgal on Oct 3, 2017 4:35 PM

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  • air flow - javier on Oct 6, 2017, 3:37 PM