Timing - Team Camaro Tech
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post #1 of 2 (permalink) Old Jul 27th, 03, 04:00 PM Thread Starter
Senior Tech
Join Date: Oct 2000
Location: N.J.
Posts: 574

Just finished setting up the msd 8361 billit distributor. I used the blue stop and two light blue springs. I think I've got the curve where I want it 14 deg at idle (900rpm). And 38 total. All in by 2900 rpm. What I dont understand is, there is no advance between idle 900rpm and 1450 rpm it stays at 14 deg. Is this ok? shouldn't the advance begin just off idle? If I add a lighter spring will it help or just cause the total advance to begin at a lower rpm like 2500. I would prefer not to use the vacuum advance. Any thoughts Thanks Rich
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post #2 of 2 (permalink) Old Jul 27th, 03, 04:49 PM
Senior Tech
Join Date: Mar 2002
Location: Austin, TX, USA
Posts: 5,277

Not usually for mechanical advance. If you had vacuum advance, you'd see about 20 degrees at idle. Then off idle it would dip down closer to 14 and then start back up again with the mechanical advance.

BTW: Sounds like you've got your advance dialed in pretty good. Now it's cut-and-try time where you monitor performance, listen for pining, and optimize the advance.


68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI
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