FS:Ported z6 intake manifold
Manifold has been ported to 60 mm from the factory 56 at the plenum ported by polar bear tuning. Runners are lightly ported/polished. Email me for pics. fastguyzc@yahoo.com if intrested. 75 shipped. Thanks Chris
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With a matching 60 mm throttle body I will guarntee a gain of 2.5 mph in the quarter mile and .2-.3 tenths off your time. I can also include a 60 mm throttle body. 140 shipped for the complete combo. Roughly 8 whp is usually the gain with the throttle body and the power gains are in useable power range unlike skunk2, edelbrock which only make gains above 6500.




