I recently purchased a 1973 Ford pickup. The engine is pretty tight, but i have to run premium gas. I ran a compresion test and i get about 195 psi, on most cylinders. Would a Edelbrock Vara-Jection Water allow me to run normal old 87 octane fuel. I like the truck, its a F350 camper special, but premium gas is gonna suck my wallet dry. Hmmm i wonder if i can jam a diesel in there.