Broke an O/P shaft, 9.60 / 9.70 1/4, mid 1.30's 60, car w/d was 3900lb, motor around 880hp at the time, footbrake only. We upgraded the I/P and O/P shaft while it was apart.
We have a 655 waiting for parts, to go in. We will run it behind that but before we fit N20 we are going to a TH400 derived box.


[Linked Image]

Last edited by Tig; 03/01/23 07:21 AM.
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials.
9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge.
RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03