Robk "Speaking of VTA, I put the Evo4 gears in for the 2.294 internal, and it helped the car get down the straight a lot better. It didn't get as wound out as it did at 2.5 at the same final. Sounds crazy, but my buddy even noticed"
Here he is saying at same final (meaning fdr). If thats true, he had to change the pinion/spur combination to compensate for the lower idr