Take a flapper wheel and clean out the intake runner boogers. If you gotz da skillz, port match the mani's to the head. Port out the exhaust manifold inlets slightly more than the head to minimize reversion.
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2009 Corvette Z51-SOLD
1992 Mitsubishi Eclipse GSX-SOLD
2013 BMW Z4-Current summer hooptie
2017 GMC Yukon-Current winter hooptie
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