5.3L Single Turbo COS3
So a 63 Nova came into the shop today its got a stock 5.3L with a single Precision 75/76 Turbo setup on it with what I was told were 76 lb injectors. Its got a 4L80E trans with what I was told was a 3000 stall converter. The first issue I have is with the transmission which I think has issues internally, is that it shifts from 1st to 4th and skips 2-3, then when you accelerate more it downshifts to 3rd and then when it tries to shift into 4th is falls to Neutral, But I can fully control and make it shift with the scan tool DVT functions in each gear and lockup. So on to the dyno I get the car to Idle and run, go to make a baseline pull and it all looks good until 2800 RPM's where it acts like it is to rich to run, which it is 11:1 so not that really too rich. then if you lift it will accelerate for a bit, but if you are WOT it will boost and act weird. Ill attach the tune any help would be greatly appreciated. It has a 3 bar MAP, I have a 2 Bar I was going to install and start over of I can't get any help.
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