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Old 02-28-2006, 04:18 PM
glen242 glen242 is offline
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Originally Posted by KNanthrup
Yeah I get that more initial makes it idle faster, I just don't inow how much is TOO much. I think im going to take your suggestion and bump the timing up little by little and test it by going up hill in high gear and listening for pinging then back it off a bit.

Yeah I swear I checked the timing mark when I had the engine apart but I might engine-stop it to check again (even though its a pain in the ***).

Anyways maybe your point about initial timing doesn't matter is right. I'm thinking that maybe the distributor I'm using has weak springs in it also, because all timing does come in before 3000rpms (probably about 2600 like yours). Plus my initial being 22* and my total being 35* means that there's only about 13* of advance in the springs. The only reason why I'm weirded out by it is because I would think that it should run fine with initial set back to say 16* but it just doesn't.
Stock distributor on my '76 'vette has maximun centrifugal advance @ about 4500 rpm. That is the reason for me changing springs. I want it all by 2600 rpm.

The 13* advance probably means you are getting some mechanical advance @ idle. As stated, I get mechanical advance @ idle so I time it for all in +/- 36* @ 25-2600 rpm and ignore the initial timing.
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