Polishing an Edelbrock Manifold

Something that works really good to clean aluminum as long as it is not on the car is the chemical that A/C contractors use to clean A/C coils on your residential A/C.I have used some a couple of times ,just spray the stuff on like you would your A/C coils,let sit for about 10 minutes then rinse,repeat if necessary. Works great for cleaning aluminum.It is not healthy to get it on painted surfaces!

Bobby Dodson