i was planning on switching the carbs to e-85,but the build went over budget, so i have to do this until i can do the conversion, my buddy runs a quick fuel e-85 carb on hiis 416, he had the biggest jets they make for a 4150 style carb. and its still runnin lean, so he took it to c&s carb. shop they worked on it, now he has to start over trying to get it jetted right.when i can afford to have it dyno tuned i was planning on bringing a couple different fuels to test.