Made it to the track tonight for a few passes and all seems to be well. Had to drive home in the rain, but now I know the transmission will work and the freshened engine is still in one piece. It was a little pita without an alternator, but I saw what I needed to see.
First pass was with the car in it's normal set-up. After a short burnout I left about 2800rpm and it jerked the wheels hard with a 1.45 60' time. Brought the car back to the pits and decided to finally try the Caltrac bars in the lower hole. With no other changes the second pass was nearly identical to the first. Like Perry said, "there's no magic to be found in those holes"...at least I put it to the test this evening.
I made a third pass with another carb, but the run was aborted when the car drove hard left at launch...figure there must have been something on the start line. I had seen enough anyway...now I have something to work with once again.