HEI Distributor
Senior User
Joined: Jun 2014
Posts: 351
Likes: 7
From: Plumas Lake, CA
Went through my share of ignition issues
Never tried the Pro Comp so I cannot comment on it's quality. I tried the Pertronix flame thrower II distro and coil set up. Went through two sets and the system would not work on my 460. Didn't have wiring issues, the truck has a brand new American Autowire harness in it.
Finally pulled the trigger on the MSD setup. 6AL box, non vacuum advance HEI distro and outboard coil. The system is great. burns cleaner, fires right up, and warms that big block up in half the time.
The only thing I can advise is to steer clear of the Pertronix plug and play systems. I bought the first one it didn't work (Fired on 1 cylinder) and the second, replacing the first, did even less. I can buy that I got one faulty unit but two in a row?
Finally pulled the trigger on the MSD setup. 6AL box, non vacuum advance HEI distro and outboard coil. The system is great. burns cleaner, fires right up, and warms that big block up in half the time.
The only thing I can advise is to steer clear of the Pertronix plug and play systems. I bought the first one it didn't work (Fired on 1 cylinder) and the second, replacing the first, did even less. I can buy that I got one faulty unit but two in a row?
Senior User
Joined: Aug 2013
Posts: 255
Likes: 0
From: Terre Haute
The solenoid is not active if the truck isn't starting. The I position on the solenoid is to have a power supply to the coil and distributor in start mode. As a side note, I went to HEI because of the hack job/rats nest I had in my truck. Wiring was much easier and under hood appearance better because of it. I am satisfied with the distributor also.
Fleet Mechanic
Joined: Nov 2009
Posts: 1,398
Likes: 6
S terminal is for activating the solenoid(key in start position), sending power to the starter and I terminal.
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