Re: 67-72 60ft questions
Bigger converter and a stickier tire. Perhaps a 2 step to help build boost.
That's where I would start.
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------Motor---------------Bottle
60'---1.53---------------1.41
1/8---6.58 @ 105.92----5.87 @ 118.41
1/4---10.38 @ 126.97----9.24 @ 142.49
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