[Oldsguy]

66starfire;
Take it in steps. Remember your goal too. From your last post about air suspension it sounds like you are trying to bleed the last few tenths of a second from your 1/4 mile et's. I am no guru on this subject but have observed a lot of posts about it and the general consensus is taking it in steps becuase you are talking about traction not horsepower. Do you already have traction problems? If you don't then back up. Look at torgue converter stall speeds, rear differential axle ratio, and posi vs. peg leg. If you do have traction problems, what about tire type/inflation/size, boxed frames and conventional rear suspension improvements. Please don't take this the wrong way, as I said, I am no guru but keep focused on your goal.