Hi, Built a new engine for my 94 na swap. Engine runs great with no noticeable issues. My first question is. I did a boost leak test and my throttle body shaft seals are leaking. Does this have any effect on engine performance. And are they worth rebuilding. Second. My upper plenum has already been machined for larger throttle bodies. Is there much to be gained with the larger ones power wise. Thanks
Blueridge
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throttle body shaft seals leaking - blueridge20:16:47 03/09/14