Another episode of "What will it run?!"

Its not your heads that are a major issue at this level assuming they are the ones that flow in the region of 253cfm, its your gears, shifting@6200 where you say it likes it is the rpm you should be pulling at the stripe, only way thats happening is with 4.10>4.30's NA, thats where your 12.00's are along with that 850....your not using all the hp that motor has, as you say it goes flat. As I posted earlier adding 65hp to my motor didn't get me the 9/10ths gain in ET, around .4 of that was in the converter/gears upgrade and the better 60 from it, my mph from 101>107.8 shows the 65hp increase.