Originally Posted by
rfleck
The break in was pretty lengthy. I just put a comp heat on it and then had it idling blubbery flat trying to keep the temps in the 240-260 range for a quart.
Afterwards, I begun running mine on the track and keeping above 220. Run it that way unitl you reach 3/4 gallon, then start putting a race tune on it, and remove extra shim at 1 gallon.
were you chasing the tune throughout the entire first quart of break in? I could not get up on the pipe at all without flaming out for the first 10 tanks of fuel, no matter what tune I had on it.