C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

timing help

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Old Mar 26, 2006 | 12:48 PM
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Default timing help

i have just swapped an aluminium head 350 out of an 89 vette into a 61 vette using a painless harness, the timing needs to be adjusted and all of my manuals tell me to check the sticker under the hood. can someone tell me what the timing is supposed to be according to the sticker, also what wire(s) to disconnect, and any other important information that may be there.
thanks for the help
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Old Mar 26, 2006 | 12:51 PM
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6*btdc
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Old Mar 26, 2006 | 12:52 PM
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And you should be disconnecting the EST wire before setting the timing. Should be a single tan wire. Usually beside brake booster under normal implants
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Old Mar 26, 2006 | 02:51 PM
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6* like agent sez is always ok...good with most ''performance'' chips too....with premium fuel and the stock chip 10* usually feels a bit nicer....its hard to go too far with initial spark now that you have an ecm--it will retard spark if it feels it--unless you go ape
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