left my mach intake stock.
didn't want to take a hit on the bottom end with a heavy street car.
and the porting is nice but the short runner is what makes the hp.
Chris - I know about The short runner intakes too. NaSVT does them over on SVT performance. I wanted to do a short runner myself but without ever doing one before I decided against it. I know most of the gains from porting come from the shortened runners, I didn’t know if anyone else has ported their upper lid like I did though. I imagine it’s probably worth at least a couple HP over stock though
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