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81 Tune up

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Old Aug 25, 2008 | 11:59 AM
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Default 81 Tune up

I'm going to do a tune up on my 81 and was wondering if anyone has replaced the folloing parts and did you see a difference?
Coil and cap with a Corvette Performance Distributor's "Hi-Voltage" Coil Kit,
A5805 as shown in Ecklers and adding Corvette Spark Plug Wires, Moroso, 1975-1982 --Part# A5754, Corvette Distributor Ignition Module, Hi-Performance,
DYNA MOD, 1981-1991 --Part# 29185, and Corvette Spark Plugs, Rapidfire, #2, ACDelco, 1976-1984 --Part# 31853.
I don't want to spend a bunch if I'm not going to see any difference from stock.

Thanks in advance.
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Old Aug 25, 2008 | 02:31 PM
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From: Cedar,BC
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Save your money.Just buy good quality parts at your local parts store.If it looks like the stock HEI module,the GM one is just as good!
The GM part is good to around 4500 rpm,unless you have a built high performance,high rpm engine the stock replacement components will get the job done.
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Old Aug 26, 2008 | 09:17 AM
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my advice is to go buy a double roller timing chain set

the 81's use a plastic coated 'standard' timing chain and the plastic teeth wear down and eventually the timing chain jumps.

how I know.........

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Old Aug 26, 2008 | 10:10 AM
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Make triple sure that the module has the right number of pins. Verify it against the one that is in there. Otherwise, it simply won't start.

Also, remember to set the initial timing with the distributor computer harness unplugged.

Last edited by CA-Legal-Vette; Aug 26, 2008 at 05:13 PM.
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Old Aug 27, 2008 | 12:02 PM
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Default Thanks

Thanks for your input. I wish finding my water leak on the drivers side was this simple.
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