08-05-2017, 12:37 PM
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CC Member
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Join Date: Feb 2014
Location: White City,
SK
Cobra Make, Engine: West Coast, 460 CID
Posts: 2,916
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Not Ranked
Surge / Miss: Ignition or Carburation?
I've got the car running again, but get a surge / miss on light throttle cruise between 2,000 and 2,500 RPM. There's also more exhaust 'popping' or 'burble' on throttle-closed deceleration than before I replaced the ignition box and coil. There are no apparent issues at idle, when accelerating, or cruising < 2,000 RPM. I have not yet checked the timing but, other than replacing the magnetic pickup and distributor cap, the distributor was not touched.
Environment: - MSD 8477 distributor (magnetic pickup swapped from old MSD 8577 distributor in process of getting car running)
- Summit Multi-Spark digital ignition control box p/n , mounted behind dash ( https://www.summitracing.com/parts/sum-850610 )
- Summit Epoxy coil ( https://www.summitracing.com/parts/sum-850500 )
Questions: - Does this sound like an ignition or a fuel issue?
- Where do I start?
__________________
Brian
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