I made a couple WOT rips on this thing today. It screams for what it is. I will also be the first to admit, I screwed up in the tune setup and had the thing targeting a 14.7:1 WOT AFR, although I do remember setting it for 12.5:1. Oddly it did not spark knock but then again currently conservative on the timing with only 29* total timing at 4,000 rpm. I need to get some 91 in the tank and give it some timing to see how it is really capable of running. I also overshot the adjustment on the TH400 governor. At WOT even with the kickdown not currently connected, it bounced off the 5,500 rpm fuel kill a few times before I lifted a bit and let it upshift. 5,500 rpm is right at 60 in 1st gear. So I have some adjustments to make but otherwise it is an animal and it does not even feel like it has a torque curve, just grunt everywhere. Feels like it pulls equally hard from off-idle to the fuel kill. Pin the throttle, sets you back in the seat and it goes. I would guess 0-60 was about 6 seconds. Remember this pig is only ~4,500# curb weight as it is largely an empty shell with only 2 front seats and the stock TH400 converter is stalling about 2,600-2,700 rpm behind this L31 setup. It gets up into the torque curve quick and pulls.
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