to grizz1 on the 3R it takes 1.5-2 gal. to achieve the max. performance ,thks for that info. anyway i got something to ask i got almost a gal. on my 3R ,should i limit my epa setting or just do up to 3/4 throttle only ??, i'm really dont want to do full throttle thing on the (140ft straight way) what would you say were having a race this weekend...............