Anyone out there have some before numbers on a na 302/306/308, with a motorsport (explorer/gt40/cobra) intake, then switched to a extrude hone explorer/cobra? Had one of the uppers cut open and ported? etc and have gains/losses(dyno #s/track times) before and after the change?
cobra upper, na 302, stock upper vs ported?
- Thread starter mazroth
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