What the best gasoline mix to use?

[RICK LAKE]

CSX 4039 You should have no problems getting way with just high test and a bottle or 2 of the octane booster. I have Aluminium motor, block and heads and 10.5 compression and run 91. If you are having problem with pinging, add a water injection kit from Snow. All you do is fill the tank with water and a bottle of windshield washer fluid. 50/50 mix. Works great for turbo and blower cars. You just run a little less timing in the motor. The motor runs cooler, and you only lose maybe 20HP inthe top end. Some people have said they have gotten up to 50HP more with running more timing. This will work on any motor. Just have to remember to fill the water tank. If you are at 11.0-1 you should be OK with a good carb and fuel system. Not letting the fuel get hot under the hood and on the way from the fuel cell to carb is important too. They sell hi temp hose covers to insulate your fuel lines and keep the temp down. Are you running a turnkey pan? The cool air from the outside of the car is better too. Try and seal the turnkeypan with form tape to the hood scoop. There is an issue with Aviation fuel. I believe it's a lubercate issue with either too much or too little. The other thing is you are not flying at 25,000 ft. If you are going to run in the 140mph range you will need a pilots license. Rick Lake Ps. Ennie is the one to ask about high compression motors and mixing gas everyday. He's been there and done that. He found out that in some cases less is more.