I had used a clear coat but it was raining that day so I don't know if that was the problem or just didn't keep a wet edge.
I had originally used the ultracoat paint but it was a bad match and the fuel got to it. What I have now is Walmart Krylon and it matches much better and it seems to be fuel proof.
I will probably redo just a clear coat.
On engine RPM, I just bought a tach and have been playing with it. I have been playing with different mixtures so I am all over the place but am getting between 8500 and 9400 when it starts screeming. The 9400 is alittle high so if I get that more consitantly I will go to a 16x10. I am still a little rich. I now have about 3 gallons though the engine and it flip starts like a dream. Any problems I have had have been my doing but the engine has been flawless. It also idles very consistantly at 1600.
Mark