My car is only 10.8:1 compression....its worth it. I used the kit from Rob Mix Services. It has everything you need, but no boosters. I have a Proform main body, and according to the Rob Mix web site (
http://www.e85carbs.com/), I don't "need" to upgrade the boosters at my power level....but I know a lot of other e85 builders will say that you should....idk....it seems to work fine for me :-D. I have friends that have used the Quick fuel kit too, I just thought I would try this one....LOVE IT!!!!:burnout: