I know that MSD has the high and mighty name in ignition, especially their 6al spark control box, but how about these other companies like the Crane Hi-6, and i know holley makes one, and jacobs, etc. How do they stack up against the msd's?

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Chris Dagenais
CST Kelsey
'71 Malibu soon to be 454!
http://member.xoom.com/Gandalf80/Chris'sPage

They all basically do the same thing, based on the "Capacitive Discharge" principle. I run the Crane HI-6 because I light the rev-limiter better than the MSD system. Its built into the box(has a dial). But in my opinion one will not make a NOTICABLE difference over the other.

Ignition in my car is as follows...

Crane HI-6 box
Crane LX-91 coil
MSD pro-billet Distributer
MSD Super-Conductor Wires

I don't think 1 box over another would make a difference in my car.

I don't know how true it is but I was told MSD makes the Crane box or the internals. Look at the part nubers on the 6AL 121-6420 and the Hi-6 270-6000-6420 in Jeg's. Like I said I don't know if it's true or not.

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Mike Hurta
(Aug98)
Gold#25
www.chevelles.com/feature/aug98.html (http://www.chevelles.com/feature/aug98.html)

It would not surprise me if MSD made the Crane box. They are both fine units. I like the MSD stuff because they seem to have a good support group for the end user. I have installed both, no trouble with their instructions, no troubles with either unit.

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Wally
Gold #67
67 malibu