Awesome work  . Just wondering what rear gear and controller are you using ? I have an old(ish), NOS (Holley) 2 stage controller with a little screen. I haven't used it yet as we were looking to do some upgrades before fitting the N2O (9" and TH400 type box) along with the 655 but it looks like it should do the job. We're hoping to go mid 8's with it all scienced out but who knows 
'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
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