Discussion Forum - Northstar Chevelle Club

Accel, Mallory, MSD, and what not use to sell weights and spring kits. I would think you would start with the springs. Others will chime in that know more.

Here's a Moroso kit for our cars.   
http://www.jegs.com/i/Moroso/710/72310/10002/-1
The profile on the inside of the pointed end of the weight is what dictates mechanical advance. If they allow too much, you tach a small weld bead on and then check. Ideally, the advance is too little and the bead is then hand filed down to stop where you want it. This CAN be done with the distributor in the engine and an advancing timing light but it is a long, hot task. It's much quicker to have it done in a Sun machine. I had mine done by a guy down In Shakopee while I waited. I had already dis-assembled, cleaned and  lubricated it and installed a Pertronix III.

I would think some of the performance engine builders on the south side of the cities would have a Sun distributor machine or know where you could take it.

-- Edited by Lost in the 60s on Thursday 17th of February 2011 05:44:02 PM

I went with the Pertronix III and matching 45,000 volt coil in Black to look original. I was able to open the plug gap up to .042 also and it made a world of difference on starting and high rpm ignition stability.
If you consider the Pertronix, look at StreetSide Auto in Kansas City. I found the best price on-line and then called them. They matched the price and ANY order over $50 gets FREE shipping. Summit and Jegs won't match that !!

SShink wrote:

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If you get up to the Cities, Competition Engines in Eagan has a spin up machine for disty's.  They're going to check mine before the dyno clock starts.

Let me know if you want their phone/address.

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 Thanks Stan.  Do they actually change the amount of advance the distributor will add  and also when the advance comes in  or do they just test the distributor and tell you how much advance it has and when it is coming in?

I found a shop in Shakopee that will modify the distributor to limit the amount of advance and when it comes in.  He says it involves complete disassembly of distributor 2 or 3 time to get it correct.  Around $105.

jim larson wrote:

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SShink wrote:

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If you get up to the Cities, Competition Engines in Eagan has a spin up machine for disty's.  They're going to check mine before the dyno clock starts.

Let me know if you want their phone/address.

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 Thanks Stan.  Do they actually change the amount of advance the distributor will add  and also when the advance comes in  or do they just test the distributor and tell you how much advance it has and when it is coming in?

I found a shop in Shakopee that will modify the distributor to limit the amount of advance and when it comes in.  He says it involves complete disassembly of distributor 2 or 3 time to get it correct.  Around $105.

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That's probably Jeff ? He did my Camaro distributor. He welds on the main shaft to limit the advance instead of the weights. That also includes complete cleaning and lube, which I had already done, so my charge was $65. I was going to suggest him, but it's a long way for you. He's actually closer to Jordan.
I would call Competition Engines in Eagan and ask what they do. If you don't want permanent changes to your original distributor shaft, I think I have some stock weights around here I could build up with weld and then they could be filed down to get where you want to be.