what he said, X heads do well all motor i had friend of mine with 347 with X heads went 11.2's on motor with TKO 5-speed i wanna say it dyno'd high 300's on motor it was good running combo but a little driver error consistantly on the 2-3 shift i think probably a good 11.0's on motor, what bottom end are you using? is it a forge piston short block??? i seen a stock short block with the TFS head intake and and stage 1 cam combo on stock bottom end go a 10.60 before with 460RWHP tuned by scott that owned prospeed i think now he's at modular powerhouseOriginally Posted by crashtke




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