that is a hard hit in top hole . .I run the lower hole i average about 1.54/55 nowadays . not sure the caltracs will net you 2/10's but they will be more consistant
good luck

Tex

New best ET 10.259@129.65 .
New best MPH 130.32
Finally fitted a solid cam,
stepped it up a bit more
3690lbs through the mufflers
New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm
Power by Tex's Automotive