Installed MSD now problems - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ont_guy_38 · 09-07-2012, 05:28 PM

Going to the track tomorrow so I thought I would install my MSD 6AL box..install went good ,fired right up . I then tried the 3000 chip to see how it worked and revved it up and like it supposed to it would not go past 3 grand but also it backfired once , So I put my 6000 chip in and took it for a ride. Now when i hammer the throttle from a stop it stalls , never had that problem before , it used to just leave hard. Could it be possible the accel pump on my Holley blew from the backfire or does everything have to be retuned again ?

09-07-2012, 05:28 PM	#1
ont_guy_38 Registered User Join Date: Jul 2007 Location: Ontario Canada Posts: 1,006	Installed MSD now problems Going to the track tomorrow so I thought I would install my MSD 6AL box..install went good ,fired right up . I then tried the 3000 chip to see how it worked and revved it up and like it supposed to it would not go past 3 grand but also it backfired once , So I put my 6000 chip in and took it for a ride. Now when i hammer the throttle from a stop it stalls , never had that problem before , it used to just leave hard. Could it be possible the accel pump on my Holley blew from the backfire or does everything have to be retuned again ? __________________ 1985 C10 2004 Avalanche



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