Tom, you are tremendious for doing that, many thanks. I have been pouring over the charts but I have to admit I am still not certain where I would be at rpm wise at the end of a 1/4 mile. With the 4:11 gears, shifting at about 5600-5700 rpm, I cross the finish line at about 83 miles an hour. the rpms are not up all that high when I cross and frankly the car seems to be running out of gear. At this point I can build either 4:56 or 4:88 or both. I am leaning to the conservative side and install the 4:56 gears but always wondered whether I could get down the track with the 4:88s without having to let off.

Years ago, I would read in the TPN that Inliner members Mike Smith (who would often be described as "the hippy" in the TPN) and Manny Torres ran 261 powered cars with 4:88 gears but that was a long time ago and in looking at my old issues from the 80s and 90s, no mention of the rpm situation.

Last edited by mdonohue05; 07/06/22 12:27 PM.