By Pro Fuel do you mean the bike drags?
That's the only pro fuel I know of...
Unless you mean Top Fuel or Pro Mod...
I could be wrong...there are classes of cars that i'm not aware of I'm sure...
Top Fuel would be easy...Pro Mod, a little trickier...
What kind of car is this going to be in? What year, an older 60's or 70's drag car?