Originally Posted By mopar dave
How many rpm does the tach drop at shift change? Any idea of peak power rpm? I would also calculate vert slippage as someone else has suggested. Wallace has one too. I always shifted my sb at peak power rpm as 200 above or below made little difference. My vert had a 6% slippage and would drop 600rpm on shift.


Shifted it at 6500 last night. That cant be too awfully far off from peak power on a 360 with a fairly big camshaft.
Unfortunately i didnt watch to see rpm drop last night

69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
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