Expert: Matt Lyons - 6/11/2008

Question
i know this is not racing related, but you said you have experiance with SBC performance... i have a 1985 chevy k-10 pickup with a 305,edelbrock performer 600cfm carb, hooker long tube headers, and a mandrel bent header back exhaust system. recently a friend suggested that i should install an msd series 6 ignition module on my truck for improved power and fuel economy. how would i go about installing this on an hei system? what would the benefits be to installing that system as opposed to my current setup (accel super coil, accel cap/rotor, superstock spiral core plug wires, and accel u-groove header plugs) would i be better off to just buy the accel H.E.I. module to complete my system? also is 0.060 gap too much for my plus with my current system? it runs fine but i have been told that is too large of a gap for the stock module...

Answer
The MSD 6a box is perfect for your application. The instructions include easy wiring diagrams for the HEI. I would ditch the super coil and the wires. Those are bargain basement wires that won't hold up to the increased spark energy. Buy a set of MSD or Moroso wires.
The plug gap is fine with the HEI.
The benefits will be better idle, cleaner emmissions, and increased fuel economy.
You might also checkout Performance Distributors in Memphis. All they do is HEI's and steve Davis is a cool guy to deal with.

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