ntsqd
Well-Known Member
Fundamental difference between the carbon build-up in an intake manifold and the build-up in a barrel. That in the barrel has been exposed to very high temperature and pressure (at the same time). The temps and pressures aren't in the same class, but think about how diamonds are supposedly formed.Retarded timing or to much overlap on a cam can cause a lot of reversion which will carbon up the carburetor, the black soot on the carb bores, fuel injection is even worse about carbon because there isn't any wet flow of fuel cleaning the intake and throttle body. Carburetor cleaner does a real good job of cleaning the carbon build up don't see why it wouldn't work for barrels.
Not saying it won't work, just that there is substantial difference in what the carbon has been exposed to.