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I have been using manifold vacuum

December 6 2017 at 4:36 PM
John  (Login MaSnaka)
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Response to Order of tuning

all along. I do notice my idle will vary when coming to a stop after cruising speed and a blip of the throttle will usually cause it to settle back down. These were the characteristics of my 390 with this same carb. Should I switch to ported vacuum or just ditch the advance altogether. Plug both ports and leave the canister on the distributor open? Also I'm not too sure how to change the dist. timing internally (Mallory Unilite). Making the adjustment at initial by adding 2 degrees will also add that to my total. Forgive me for asking a stupid question but do I check this with a timing light and raise the RPM's to find total? And at what RPM should I see it? Thanks for your help.

John

 
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  • Well - Ross on Dec 7, 2017, 4:27 AM
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