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  1. Tunnel ram for conventional BBC heads - Dart VS pro-filer

    Naturally Aspirated - Uratchko Racing Engines
    Hi Everyone Looking for some results if anyone has done a comparison, or experience with both manifolds. Engine is conventional headed 632, 15.6:1 comp, Dart Pro 2 380cc heads, won’t be spinning much past 7000rpm if at all, and methanol is the aim for fuel. Am setting the car up for EFI...