Vac advance tuning question
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Depends on the unit you have. Some have a allen head screw down inside them that adjusts the spring tension. If your doesn't you can either buy one that does or make up some way inside the dist. to limit how far it can advance.
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From: Big Sky Country
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From: Northern and Southern Cal
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From: Northern and Southern Cal
That was a great article.
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From: Rossmoor at Seal Beach
Right on Marc.. that is one of two links that I have used I will add the other as it shows how to adjust the Mechanical advance for optimum performance by flipping the plate... that restrains the weights. Surprisingly in this case less can truly be more.. the attached article will explain how it works, and it really does work!
You want to make sure that the Vacuum Advance Canister is in very good shape, as they get old or subjected to heat they stiffen up , and don't work as well... Rock Auto sells an Adjustable unit which is an easy swap in for $9 all you need is a screw driver, a pair of needle nose pliers, and a 3/32 Allen wrench Adjusting the vacuum advance is more by feel then anything,, but those articles will explain what and why, if you read them a few times it will all make sense.. the attached article will explain how you can advance the timing on the low end more without over timing the top end, which gives you both very responsive low end, and top performance in the top end..
http://www.bob2000.com/dist.htm
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From: Rossmoor at Seal Beach
I used those tips and brought my FE to life... Now I can have initial timing set at 15 deg,, and it brings in the advance quicker, without over timing the top end.. the big boost in hp is great, but it also allows for much better mileage during everyday driving, due to greater torque on the low end, which anyone who drives streets regularly really wants. It is very well explained so it make sense to most anyone!
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