Originally Posted by
Chris Peralta
I have a question for you guys.... Does anyone in here run these GO engines at an altitude of 5,000 feet or above? I am curious what your doing to get power out of them as I have seen several GO's run up here and one was in the hands of a team driver from Texas, and I have not seen the power you all are speaking of with these mills.
Are people pulling out headshims on engines at sea level at all?
after completing run-in take out 1 brass .1 shime & see how u go !
also remove the carb restrictor as this will be starving you motor of o2 which is a lot thinner at 5000 feet.
the more o2 into the carby the more power u will have. JMO