This RPM calculator has always been real accurate for me for the street and the track, but I've never raced with highway gears. Does this look ok to you guys? About 5450-5500 RPM's at the 1/4 mile stripe with 3.23's, 26" tall slick, and 'thinking' my car will go around 127mph.

I have a 9.5" converter that seems to flash pretty high so I think it will work with 3.23's. If I use a 28" 275/60 Radial I could go to 3.55's but I sure do like the 3.23's when we cruise to a car show an hour or more away from home, I hated my old 3.55's.

I don't think 1/4 mile ET will be much different between a 3.23 and 3.55 but I've never tried it before. My previous cars all had 8" converters and 4.56's.