Thread: Initial Timing Advance?
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07-16-2015 06:01 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 08:30 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 03:41 AM #3
PLANET EARTH, INSANE ASYLUM FOR THE UNIVERSE.
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07-17-2015 07:49 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
Thank you Roger. .
Another little bird