RE: Trashed my new motor after break in!!
I pretty much heat cycle my engines but do preheat my engines with a heat gun before starting. I get at least 7 to 9 gallons or more out of my engines but I do run more fuel though my engines then what that article says before I tune for performance. All depends on what the pinch fills like before I do tune for performance. My STS engines have such a tight pinch some times it take a gallon or better.