I was able to try out the new 150# seat-440# open springs this weekend and that was the problem with the 6600 rpm limit......it went to 7100 without a hiccup.
Now as for being any faster, it didn't seem to add much to the power level yet. I can at least test shift points now and the fuel curve, while needing some tweaking, is now making sense too.
It did equal my best previous e.t of 9.12 in 60* 1800 D.A. weather a few months ago. It was 80* 2200 D.A. on Saturday's test session.
Thanks (fast68plymouth) for the spring pressure advise .