Agreed Cab: we have steadily been dropping et, 60's and getting very consistent for about 2 seasons now.
This winter, new rear shocks, from single adjust to dual adjust.
We have reduced static friction losses, moved to electric pump, fan etc along with a LOT of chassis tuning trial and error - car is pretty deadly .
I just keep looking for that next little area than can be improved an i really think getting up on target AFR faster is going to show up in the 60 and 330.
We are at 1.36-38 on 60"s at 3340lbs , foot braking and i believe with better shocks and a little more carb tuning, we can get to 1.33-35.
Dizzy isn't locked out , all in at 2500 but we might try locking it out to see if it helps- might not as we stage at 1800-2200 depending on track.
Its a smallish .625 cam in a 511 so, i may be fooling myself but- wont know unless we try!