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  1. Stang714

    300 RWHP with stock heads and cam

    Thanks brotha now Iam out here in California if I switch out to the gt40 heads and intake wouldit be hard to pass smog with those parts???
  2. Stang714

    300 RWHP with stock heads and cam

    Hey guys Iam new to the mustang game And I wanted to know if I got my stock heads and upper and lower manifold ported would it make a diffrence I have an 89 lx 5.0 hatchback Iam trying to resurect her back to her foxy glory