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LT1s have lots of ticks, even the injectors can tick. How is the oil pressure? LT1 historically have low oil pressure, and some filters can actually cause a tick. If you not using a GM filter, switch to one next oil change.
Also check the exhaust, could be a leak at the join, and the 97s have that odd cat placement on the drivers side.
Also check under the hood in the dark, a bad wire can arc and tick and still not cause the car to run bad. I've seen this 2-3 times. The #3+5 and #6 cylinders like to burn wires over time.
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93Z M6 Black: The 385 Lives! Supercharged, 3-core front mount intercooler, GTP heads, 3:73's, Street twin clutch, Jethot Longtubes, Mufflex 4" catback/spintech, S+W cage, Spohn Suspenion, Yada Yada Yada
1) Build it
2) Race it
3) Break it
4) Repeat!!!
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