Matt, get an o2 bung sensor welded into that truck and sometime we're going to have to convert you over to a 7747 ecm. There is nothing majorly different between the 2 ecm's other than the 7747 is more popular. My lockers data-aq also works with the 7747 and we can tune with my wideband o2. I can see that truck hitting mid 13's with just some more tuning, but that's about it. Tuning can't make power, it only finds it... you're limited by the peanut cam and heads as is
. You might also be fuel limited but I can't tell with such a low reving engine.... we'll have to talk about it but definatly get an o2 sensor bung welded into one of your collectors.
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, Jon
Owner of a Red Sled.
If it\'s EFI I can tune it. Specialize in 82-95 GM (yes Lt1\'s)
\"If you can leave black marks on a straight from the time you exit a corner till the time you brake for the next turn.......Then, you have enough horsepower\" - Mark Donohue
