04-07-2016, 08:02 AM
Tom is 100% correct, but have we verified that you have 370 not 330? Read us your data plate numbers. I still recommend you use a phototach for something this important. $50 online. After verifying your high idle you still need to check WOT under load. I doubt you will regret pitching down in the end, unless it turns out you need to go further down.
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