10-31-2009, 12:24 pm
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| Corvette Enthusiast Join Date: Sep 2009 Posts: 1
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|  Sort of flat spot.
I recently replaced the factory throttle body on the '93 vette to a 58mm unit. I now am experiencing a sort of flat spot around 1800-2000 rpm at mild throttle. Where should I start looking.
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10-31-2009, 03:09 pm
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 Join Date: Nov 2006 Location: Ann Arbor, MI Posts: 640
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I'd check vacuum lines.
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1985 Z51 4+3 trans rebuilt 5.7 TPI,(.10 over) w/ CompCams 12-262-4, 52MM Throttlebody, underdrive pulleys, reworked heads, Hypertech Thermomaster chip, & cat back exhaust
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11-01-2009, 10:46 am
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| GM World Class Certified Technician  Join Date: Nov 2006 Location: New Haven Ct Posts: 5,141
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HI there, LT1 is very sensitive to throttle body changes. I would be looking right there. Allthebest, c4c5 | ||||||||||||||||||||
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