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Two Feathers

62 Posts

Posted - 07 May 2014 :  4:57:02 PM  Show Profile  Reply with Quote
I am currently running Pontiac HEI with aftermarket module. I hVe seen in Summit racing they sell an MSD box for street. My question is is it worth the $149.00? Does smooth out the idle or is it a waste of money?

Bill Boyle
Horse Feathers (Charter Member)

5126 Posts

Posted - 07 May 2014 :  7:05:26 PM  Show Profile  Visit Bill Boyle's Homepage  Reply with Quote
The multiple spark provides a quicker start and smoother idle. The multi spark falls off at 3000 rpm.


If you aren't racing and don't require a rev limiter, the 6A-2 will do.

"Dedicated to keeping the classic Pontiac engine alive."

400 bored +.030, forged TRW pistons, ported 62 heads, Hedman headers, 2.5 SS dual exhaust X Pypes, Comp 276AH10 cam, Scorpion 1.65 RR, 850 Q-jet, stock intake & tuned HEI; original owner.
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