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Re: 1991 chevy 1500 5.7 tbi erratic idle
if the gap is too wide because someone machined to much off the block or incorrectly machine the head intake surface differently.
Makes sense to me. maybe its time to save up and get a different engine.
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 O2 GMC RCSB 4.8L V8 AUTO 3.73's
rebuilt/beefed up 4L60E(at 43,000miles)
 Matching Ninja 500r
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