HEI Distributors
Thread Starter
Heel & Toe
Joined: Aug 2009
Posts: 20
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HEI Distributors
Does anyone know:
1. How much mech advance a stock HEI distributor should provide.
2. At what RPM should the stock unit be "all in."
My 1977 L82 unit seems to provide only about 16* and is "all in" at only 1800 rpm. I am pretty sure it is stock, but everything else I have read seems to indicate that the factory set up isn't all in until much higher (redline) rpms. I get the same results using the factory weights and center plate with the heavy springs from the MR gasket kit.
1. How much mech advance a stock HEI distributor should provide.
2. At what RPM should the stock unit be "all in."
My 1977 L82 unit seems to provide only about 16* and is "all in" at only 1800 rpm. I am pretty sure it is stock, but everything else I have read seems to indicate that the factory set up isn't all in until much higher (redline) rpms. I get the same results using the factory weights and center plate with the heavy springs from the MR gasket kit.
Last edited by DanielA; Aug 27, 2009 at 01:26 PM.
Thread Starter
Heel & Toe
Joined: Aug 2009
Posts: 20
Likes: 0
I did read the Sticky in great detail. I originally posted a question there but got no responses. I think 1800 is too low. According to what I have read, I don't want to be all in until 2500. Also, I think HEI distributors are supposed to give 20* of advance. Mine is only about 16* Since I believe my car is stock, I wonder if these numbers are typical, or if something else is going on.
