Thread: Initial Timing Advance?
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07-16-2015 05:01 PM #1
Initial Timing Advance?
Hi all, I am having timing problems. Trying to set initial timing my cam instructions (Edelbrock 2102) say set at 14 advanced. When i set the initial there it runs fine but exhaust seems to get hot and after 20 min of run time very hard to restart ( slow crank like dead batt). If i retard down to 8 or 10deg starts up fine. My question is why so much advance on a mild cam? Do i need to be at 14 advanced for initial timing? Cam specs are
@50 intake 204
exh 214
lift 420/442 lobe sep 112*
motor is chevy 350 .040 over Edelbrock performer heads. street demon 625 carb. Any help would be great.
Thanks in advance.
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07-16-2015 07:30 PM #2
14 initial is not out of the ordinary with hp cam. However, you need to be sure your total is limited at 34-36, and I would bring the total all in by 2000-2400rpm. Make sure your carb is not running too lean, 14 advance usually does not add heat, lean mix will add heat.
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07-17-2015 02:41 AM #3
PLANET EARTH, INSANE ASYLUM FOR THE UNIVERSE.
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07-17-2015 06:49 AM #4
Thanks guys. I did find true Tdc. I am going to try bigger cam was reading @50 Int 204. Is way to small for my setup my Scr is 10:1 going to bump up to @50 221
Great to see your new post, Mike, and great to see CHR up and running again after several days of the Hmmm, can't reach this page.... Also good that you found an easy solution to your storage/access...
1968 Plymouth Valiant 1st Gen HEMI