[RICK LAKE]

Tommy I am going old school but would think you would be running a 12.0 AF ratio on the motor. A safe motor would be like running alcohol. You would really have the watch the timing. Want a good long spark in each cylinder for complete burn. If it was my motor would want surfaces coated like pistons and heads of the combustion chamber with Swain coating. R&G we had Randy S come to the race and race propane in the car. It made stupid power. The car was setup for pikes peak. The compression on the motor was like 16.0-1.
If you are serious at running 50/50, I would get info and look into a alcohol carb to run this. I due know from the customers that own Bi-fuel truck and run both, it's a wash. They loss 2-5 mpg with e-85. This is a full size Yukon with a 5.3 motor. Looking at about 5,400 pound without extras. It's like gas and diesel towwing. My SBC in my dually gets 10-12 mpg towing. I hear diesel guys say they get 16-18 towing with same size trailer. Max speed for me is 65-68 mph on flat. I hear alot of guys getting more like 12-14 mpg. Bottom line, it's like FI systems, find the right guy who know how to get max power and keep the motor alive when racing and you are gold. Wrong setup and you are looking at big bucks for repairs. IF you have a couple of motors, try it. If only one good bullet, I would skip this idea for now and run race fuel. Buy custom is really needed. Rick L.