Beware of the camel humps, if they don't have hardened seats. Without them this unleaded gas will burn up your exhaust valves in just a short time. the machine shop here charges 350.00 to install hardened seats. At that cost ya might as use your late model heads----just my opinion
I also ran camel humps on my oval track car in the 70"S and 80's, we used av-gas and addative to keep the valves cooler. I liked to mix 1 gallon of diesel to 10 gallons of av-gas. Made good upper cylinder lube....... keep on trukin'
resto44
