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Old 06-08-2018, 02:35 PM   #8
RotaryRocketeer
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Join Date: Jul 2017
Location: OKC, OK
Posts: 247
Re: Timing Curve Advice

Quote:
Originally Posted by Dead Parrot View Post
Most likely the new vacuum unit is either coming in at a slightly lower vacuum or has a bit more total advance or both. Unlikely that any two will behave exactly the same out of the box due to manf tolerances.
Certainly. The previous advance unit was an Accel adjustable and this is a Proform. Accel was adjustable for both total increase and rate of increase. The one I just added is only able to be adjusted for rate of increase. Features of the Accel unit were nice, but I've sworn off their products after this latest sudden failure. Not even close to the first time they've failed prematurely, on this vehicle or several others.
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