dont polish it
How come? what will happen?
Wont that make it flow more?
Also, Just to make shore,
When i measure the head to figure out how much needs to be taken off, I just simply put model clay on the head and turn the engine over a few times then measure it with a dial caliper? are there any easier ways? I rather not go out and buy a dial caliper. Dose any one know off the top of there head on how much i should take off? Thank's John