70 dart 470 ci drag car build.

He does nice work. I’m going 3.5 inch. Maybe 4. I wish he did aluminum because I would definitely do 4 inch if he did.
He'll tell you the same thing, mark Williams has 3 inch rated at 1000 HP.
It is just preference but he's leaving at 5k off the trans brake with 3 inch, so 3 inch will be just fine for me foot braking.
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