Re: 347 dyno
Think it'd hold together for a 6900-7000 rpm shift?
Exact shift point depends on gearing, traction, etc, but as a general rule, shifting 400-500 rpm above peak HP RPM usually works well
I will say though, I have seen many big block cars run quicker times by shifting 1-2 early (near peak HP RPM), and then 2-3 at the higher RPM, but you never know until you try it.
Good work, another comment, a recording tach is a real nice thing to diagnose a run, or even a go-pro pointed at the gauges. My guy usually takes a few hundred RPM to move the lever after the light lights up
70 Sportsroof, 427 FE/489 cid, TKO-600, 31 spline 4.10, A/C. modified Mass-flo EFI/reprogrammed A9L/CnC ported Victor.