HEI distributor tuning problem - Page 3 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

WadmalawJoe · 03-18-2013, 06:44 AM

I ordered a limiter plate from Summit. They actually sell the little piece by itself for $3. Cost more to ship it...lol They also carry it in their stores.
I think it will get here in the next couple of days.

WadmalawJoe · 03-25-2013, 08:29 PM

Alright, I got the limiter plate and installed it. I immediately went to the half way notch hoping to cut the advance in half after all the hassle its been giving me. Well, it didn't, I still had a full 20 degree advance and for some reason it was all in as soon as I plugged in the advance! I ended up switching to the heaviest springs and all the way to the last notch. That cut the advance by 6 degrees.
Right now I have the initial timing at +8 , then centrifugal/mechanical is +20, the advance at +14 totaling 43. The tapping/predetonation is gone and she runs fairly smooth. I want to do some more fine tuning because I think it can tweak it up a little. I'm waiting on some nicer weather, its been ugly lately.
I will post again when I get it fine tuned some more.

Longhorn 70 · 03-25-2013, 08:59 PM

Quote:

Originally Posted by WadmalawJoe

...
Right now I have the initial timing at +8 , then centrifugal/mechanical is +20, the advance at +14 totaling 43. The tapping/predetonation is gone and she runs fairly smooth. I want to do some more fine tuning because I think it can tweak it up a little. I'm waiting on some nicer weather, its been ugly lately.
I will post again when I get it fine tuned some more.

Good going Joe. We are proud of you for getting this far. Let us know how the tuning goes.

03-18-2013, 06:44 AM	#1
WadmalawJoe Registered User Join Date: Oct 2012 Location: Ravenel SC Posts: 317	Re: HEI distributor tuning problem I ordered a limiter plate from Summit. They actually sell the little piece by itself for $3. Cost more to ship it...lol They also carry it in their stores. I think it will get here in the next couple of days. __________________ Toys/projects Many toys, not enough time to play! My youngest son and I picked up a 69 Chevy C-10 on 1/7/22, this is my second 69, it was 10 years ago that I had my other one. So I’m back!!!

03-25-2013, 08:29 PM	#2
WadmalawJoe Registered User Join Date: Oct 2012 Location: Ravenel SC Posts: 317	Re: HEI distributor tuning problem Alright, I got the limiter plate and installed it. I immediately went to the half way notch hoping to cut the advance in half after all the hassle its been giving me. Well, it didn't, I still had a full 20 degree advance and for some reason it was all in as soon as I plugged in the advance! I ended up switching to the heaviest springs and all the way to the last notch. That cut the advance by 6 degrees. Right now I have the initial timing at +8 , then centrifugal/mechanical is +20, the advance at +14 totaling 43. The tapping/predetonation is gone and she runs fairly smooth. I want to do some more fine tuning because I think it can tweak it up a little. I'm waiting on some nicer weather, its been ugly lately. I will post again when I get it fine tuned some more. __________________ Toys/projects Many toys, not enough time to play! My youngest son and I picked up a 69 Chevy C-10 on 1/7/22, this is my second 69, it was 10 years ago that I had my other one. So I’m back!!!



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