HEI distributor mechanical advance limits
#1
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I have a 383 crate moter that i am using an HEI distributor on. I need to run 35-36' total advance. the trouble is I need to run 15-16' initial to get the full mechanical advance. does anyone here know if the HEI is limited to 20' of mechanical advance? is there a spring/weight kit that offers more advance?
BTW i am NOT using the vacuum advance, I realize this can add advance, but at full load there is very little manifold vacuum to add advance.
BTW i am NOT using the vacuum advance, I realize this can add advance, but at full load there is very little manifold vacuum to add advance.
#2
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The HEI distributors came with different amounts of advance built in. You can make changes to the amount of advance with different springs, weights, and stops.
It's been a while since I messed with an HEI so I can't remember any specific numbers, but more often than not, I found myself limiting the amount of mechanical advance.
It's been a while since I messed with an HEI so I can't remember any specific numbers, but more often than not, I found myself limiting the amount of mechanical advance.