03-17-2010, 08:31 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,025
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Quote:
Originally Posted by dcdoug
I was told that it was probably enough to do it annually and is on my list to do soon. My vacuum does seem quite low though. Thought non-emissions engines should be at 10 inches at least.  |
The "once a year" only applies after you've adjusted them for the first time, say around 1500 miles.  Your valve are probably a good bit out of adjustment, but after you adjust them you can then do them once a year or maybe even less often than that. But there's a big difference between zero to 1500 miles and 1500 to 3500 miles when it comes to your engine breaking itself in. |
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