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Old 05-15-2018, 07:19 AM   #3
PGSigns
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Join Date: Jan 2011
Location: Hayes Va
Posts: 4,569
Re: Holley Sniper Timing Control - Worth it on ZZ502?

With a good distributor and good information on what timing the engine needs and when it can be a benefit. I ran my sniper at first with the program generated curve and it was horrible at best. Then sat down with my race engine builder and picked a curve we thought would work and rewrote the timing table. This takes a bit of time to do. Then after a bit of tweeking added vacuum timing to the table. That worked pretty good but with the ECU having brain issues we never got it fully worked out. You can not enable/disable the timing control as it takes a distributor change to go from one to the other. After 3 months of working with Holley on the problems and the thing shutting off in traffic running 60 and almost causing a big wreck I pulled it and sent it back. Carb is back on the truck.
Jimmy
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