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  • November 21, 2024, 11:13:55 AM

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Author Topic: Static timing AMC 258 @ sea level with HEI  (Read 6210 times)

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Offline Zoro

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Static timing AMC 258 @ sea level with HEI
« on: June 22, 2016, 06:20:23 PM »
For those of you running an HEI ignition on your 258's what are you setting your initial timing at?
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84 Eagle Wagon aka 'Zoro II'
263,000 miles and counting!

Offline mudkicker715

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Re: Static timing AMC 258 @ sea level with HEI
« Reply #1 on: June 23, 2016, 07:42:41 AM »
I seem to remember my timing setting was initially the same. However my plugs needed a wider gap. I think i went to .05 to make it happy. Right now its in storage for me to do an extensive resto on it.
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Manitowoc WI

Offline Zoro

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Re: Static timing AMC 258 @ sea level with HEI
« Reply #2 on: June 23, 2016, 08:11:55 AM »
Sounds like its going to be a sweet ride when it's done.

This car is going to be a tbi car with ecm controlled timing. 10* should do it, right?
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84 Eagle Wagon aka 'Zoro II'
263,000 miles and counting!

Offline mudkicker715

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Re: Static timing AMC 258 @ sea level with HEI
« Reply #3 on: June 23, 2016, 08:54:04 AM »
Should be a good starting point. Mine was a MC carb.
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Manitowoc WI

Offline ChickenFarmer3

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Re: Static timing AMC 258 @ sea level with HEI
« Reply #4 on: September 06, 2017, 01:02:30 AM »
DUI recommended Autolite platinum plugs gapped between .050-.055. So thats what I used.  I also upgraded my wires to 8.5 mm.  The website recommends 8mm but I got a deal and went thicker. 

I just changed my leaf springs and rear shocks and am starting on the front end suspension this week!

Good Luck!!


« Last Edit: September 06, 2017, 01:13:13 AM by ChickenFarmer3 »
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