I didn’t pick up on it until it was mentioned, but yeh.......
If you really ran it out through the back door, and it’s truly turning 6k through the lights at only 102mph....... then there is some major slippage going on....... in the converter and/or trans.
So, imo....... this would be the first thing I looked at next time you make some runs.
If these results repeat....... I personally wouldn’t spend anymore time messing with trying to improve the performance until the converter got replaced.
I didn’t see it mentioned what diameter rear tires you’re running, but with a 26” tire, 3.73’s(you’re sure about the gear ratio, right?), 102mph, and 6000rpm....... it’s around 22% slippage.
For a combo like that it should be solidly under 10%.
3.73’s, right around 6000rpm, 26” tire, with 10% converter slippage it would put you at 112mph.
Is the Tac something you have confidence is reading correctly?
