I've been also debating switching over to race fuel. Both I and evil666 have run 25-26 psi on 94 octane and meth. We had great results when running stock engines and running low 11's at around 120 mph in the quarter. Now with built engines going over 130 mph we feel that maybe we need that extra cushion that the race fuel should offer. This all started when I spoke to a reputable engine builder, I won't mention his name. He told me "pump/meth at 25-27 psi on a stock motor is one thing, do that on a built motor running between 130-135 mph in the 1/4 and your gonna break everything".