You guys are too much.
Dual nozzle is typically when you can break ~124 in the 1/4.. or really pushing the car. The single should take most TR's into the 10's.. past that.. it needs more. Also depends how far off the car is from being knock free. See if the car can run low 11's on 93 by itself(GN1's, roller, 70 turbo, light weight, etc..), a single nozzle will take that same motor into the low 10's. Most of us dont run that.. so its a playing game with the tuning.
Hope this helps.
Julio
Dual nozzle is typically when you can break ~124 in the 1/4.. or really pushing the car. The single should take most TR's into the 10's.. past that.. it needs more. Also depends how far off the car is from being knock free. See if the car can run low 11's on 93 by itself(GN1's, roller, 70 turbo, light weight, etc..), a single nozzle will take that same motor into the low 10's. Most of us dont run that.. so its a playing game with the tuning.
Hope this helps.
Julio