summit digital ignition box - The 1947 - Present Chevrolet & GMC Truck Message Board Network

76bonanza · 11-08-2007, 11:18 AM

I have a chance to get one of the new summit digital boxes for a good price.
looks like it is a rebadged mallory box. Anyone run one of these? I am not really looking for for much power increase but would like to smooth out the idle and some better throttle response.

I would like to mount it in the cab anyone have any pics of were they mounted theres?

c10addict · 11-08-2007, 01:28 PM

My friend had a MSD 6AL go bad in his Nova.. He went to summit to get another one. They talked him into one of their boxes. He has a 475 hp 383 stroker motor and it works great.... I probably would have stuck with the MSD if it was my decision but since I see how it is working for him I will buy them from here out.

cstm68 · 11-08-2007, 04:06 PM

what exactly do msd boxes do ?

71 lowrider · 11-10-2007, 08:11 PM

Quote:

Originally Posted by cstm68

what exactly do msd boxes do ?

I think their main function is to fail and leave you stranded at the side of the highway. Actually they are supposed to fire the plugs multiple times on each power stroke.hence the name "multiple spark discharge"

11-08-2007, 11:18 AM	#1
76bonanza Senior Member Join Date: Mar 2003 Location: St robert Mo Posts: 2,001	summit digital ignition box I have a chance to get one of the new summit digital boxes for a good price. looks like it is a rebadged mallory box. Anyone run one of these? I am not really looking for for much power increase but would like to smooth out the idle and some better throttle response. I would like to mount it in the cab anyone have any pics of were they mounted theres? __________________ 1968 c10 lowered 3" 4" 355/Th400 built by Hatfield racing in joplin MO

11-08-2007, 01:28 PM	#2
c10addict Registered User Join Date: Aug 2007 Location: pittsburgh pa Posts: 1,970	Re: summit digital ignition box My friend had a MSD 6AL go bad in his Nova.. He went to summit to get another one. They talked him into one of their boxes. He has a 475 hp 383 stroker motor and it works great.... I probably would have stuck with the MSD if it was my decision but since I see how it is working for him I will buy them from here out. __________________ 68 C10 Shorty TPI,Bagged, and all the good stuff. Classic trucks feature June 06, On the cover of Jegs Christmas Catalog 08 67 C10 Shorty Shop truck project Bagged and Z'd under destruction and getting nowhere fast. 64 C10 Shop Truck/Daily driver, Bagged, Dropmember, SOLD!!!! Gone but not forgotten.. 54 GMC under the knife getting a S10 chassis swap and bagged. See my build thread... 07 GMC Sierra 5/7 drop, 22's and 24's Air ride on my mind.. http://67-72chevytrucks.com/vboard/s...d.php?t=339340 See pics of my trucks in my profile

11-08-2007, 04:06 PM	#3
cstm68 Registered User Join Date: Jan 2007 Location: shoreline, wa Posts: 1,565	Re: summit digital ignition box what exactly do msd boxes do ? __________________ 68 swb fleet bagged on 20's 327 with 4 speed http://67-72chevytrucks.com/vboard/s...d.php?t=223308 2014 Chevy 2500hd duramax CCLB



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