What gear and what tire diameter and what weight.
Dude, if that thing went that low 11's at that speed and it REALLY was 5000+ ft DA, it's a 10 second player, BELIEVE ME. I wouldn't be changing too much on the rear suspension, until I played with the tire pressure. And here's another traction hint: Next weekend Bako has a divisional race, right? The tracked will be better prepped. Get out the following weekend for test and tune/brackets and the surface should be much better.
Our RHS 416 went 10.33 @ 131 through the muffs at over 2,000 DA...with ONLY 30 degrees of timing. It has Cal-tracs and his mono springs.
Converter "flash" is important to ET's. We only go low 1.40's in 60' as the converter has a conservative stator. If we could go 1.35, I'd see a low .20 on the board. There is alot to be gained or lost with the converter.
Refresh us with the entire combo, will ya?