total advance ?

cudavert said

I've never been a big fan of vacuum adv Somewhere I saw an article on how they showed people how to limit the total mechanical advance by welding on some tabs on the weights and then slowly grinding them down......it's sort of a foggy memory of it. Anybody see that?

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I did this to mine.. my stroker likes about 20 degrees of initial advance, and my distributor had 30 degrees built into it.. so I had to limit it to about 12. it's pretty easy to do, I should have taken pictures.. easier to explain that way.

anyway, there is a plate with a slot inside of the distributor that limits the travel of the centrifugal weights. You have to weld (I used jb weld, seemed to work ok...) the slot in the plate to limit the travel even more.. the plate will have a # on it ( mine said 15 ) that relates to the number of distributor degrees of advance ( multiply by 2 to get the number of degrees at the crank ).. if you measure the amount of travel that is possible that the plate is able to move, and you divide that by the amount of advance that you want, you can figure out how much of the slot you need to weld up...

for example, the amount of travel my plate allowed was somewhere near half an inch and it allows 30 degrees of advance. if you only wanted 15 degrees of advance, you'd close the slot by 1/4" .. not rocket science :)


-j