Chiphead is right on the money. My first build was similar to that on my 70 with a TKO600 & similar HP numbers and I was consistent 11.70s. I do recommend the BMR extreme anti roll bar. Mounts to the axle tubes and ties to the rear crossmember on the frame. Helped a ton getting both tires to hook evenly. Hope your pinion and tranny yokes are billet.
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Steve
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