[John Rogers]

That is the same regulator I used on the race car and I had to rebuild it every 3 years or so. The guys that ran "street" gas had to rebuild it every 18 months or so as the chemicals in the gas will eat the neopreme right up. Worse if the car does nor run often enough to fully flush out the fuel system. I used to use Marvel Mystery Oil in the gas, even race 100 octane as it was not as good in 2010 as it was in 2000. You can always open it up to see what the internals look like?

You did not mention the tin or seals and if the regulator is under the battery tray then that area can get really hot.