LT1-LT4 Modifications 1993-97 Gen II Small Block V8

lt1 acting strange please help

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Old 01-08-2009, 09:56 PM
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Default lt1 acting strange please help

car was running good today,until i started it back up,its like its viberating at low speed then as you get going does ok,but car doesnt seem to run at its peak.car starts good,all gauges show good,it has a bigger cams and lopes.but seams to lope sloppier now
car is also automatic.has 2300 miles on complete rebuild balanced and blueprinted..

Last edited by rspears9; 01-08-2009 at 10:08 PM. Reason: left something out
Old 01-13-2009, 01:04 PM
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Originally Posted by rspears9
car was running good today,until i started it back up,its like its viberating at low speed then as you get going does ok,but car doesnt seem to run at its peak.car starts good,all gauges show good,it has a bigger cams and lopes.but seams to lope sloppier now
car is also automatic.has 2300 miles on complete rebuild balanced and blueprinted..
Check list:

ignition wires loose or cracked?
Opti vent harness/vacuum lines plugged in properly (one from opti to intake elbow and one from opti to intake manifold)?
Spark plugs tight?
Mass Air sensor plugged in properly?
Old 01-13-2009, 01:17 PM
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bigger camS JK

Any codes?
Old 01-13-2009, 02:38 PM
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Sounds like a Wire melted to a Header..




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