I ran a 1.57 60ft 11.88 at 114mph last weekend in my 2003 Mach 1 (5 spd, 4.10 Gears, and 125 Zex Kit). I don't have a bottle warmer yet and it was 62 degrees when I ran the 11.88. I plan on getting one soon, but I was wondering if I would see a noticeable difference with a bottle warmer. I have a feeling that I wasn't near the recommended 900 to 1000 PSI. The bottle felt pretty cool.