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**clay68c10** · 07-09-2018, 08:45 AM

I have used a timing light as a diag tool to find an ignition misfire, it works well. You probably have an ignition caused miss if the flash is erratic.

I love it when a simple fix cascades into something more involved. But... It should be something relatively simple, there’s not much in the ignition system.

07-09-2018, 08:45 AM	#98
clay68c10 Senior Member Join Date: Aug 2004 Location: Centennial, CO Posts: 2,913	Re: Install thread- Holley EFI Sniper on '72 402 big block I have used a timing light as a diag tool to find an ignition misfire, it works well. You probably have an ignition caused miss if the flash is erratic. I love it when a simple fix cascades into something more involved. But... It should be something relatively simple, there’s not much in the ignition system. __________________ ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ