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Old 08-20-2012, 08:45 AM
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waggoner5 waggoner5 is offline
Hard Core 4+
Join Date: Jan 2006
Location: Golden, Co
Posts: 619

Originally Posted by ianacole View Post
Timing at idle only...
Timing at idle only only gives you an initial timing. You have no idea where your total timing including advance really is under load. Although I dont think the timing is the culprit here, it certainly can aggravate an existing cooling problem. After doing a leak down, buy or borrow a dial style timing light and check your total advance. A mild SBC likes between 30-34 degrees total advance. Your coolant loss sounds like the big issue though...
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