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Applications Which ignition is right for your vehicle.

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  #1  
Old 02-26-2006, 08:36 AM
jchapman jchapman is offline
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Default 85551 vs. 8361

Okay, I understand the difference between the two. Vac. adv. vs. mech. adv.

I'm just really confused in which one to get for my application. Most people suggest 85551. It's a 69 Nova with a modified 350. Headers, Edelbrock 650 AVS, 202 heads, "bracket cam", 10:1, 6AL, BlasterSS, etc. It is a weekend cruiser only. Fuel milage is not of concern.

Help please!

Jason
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  #2  
Old 02-27-2006, 11:52 AM
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msdtech14 msdtech14 is offline
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The 85551 does not have vaccum advance, it will work good for a performance up grade . The 8361 is the same but with a vaccum advance which will add fuel economy to your perf. up grade. All-in-all if your looking for fuel economy 8361 if your looking for more perf. 85551, which is the most common sold dist.
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Old 04-23-2012, 09:14 PM
Midwestrides Midwestrides is offline
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Default 85551 vs 8361

So, is the 8361 the same as the 85551 if you lock out the vacuum advance?
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Old 04-24-2012, 05:21 AM
Gaz64 Gaz64 is offline
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Why not run an 8394:

http://www.msdignition.com/Products/...stributor.aspx

Adjustable for mechanical AND vacuum advance.
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Gary
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  #5  
Old 04-24-2012, 07:21 AM
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msdtech1955 msdtech1955 is offline
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the 8361 has a vacuum advance ,where as the 85551 does not....but,
if you locked it it, then it would become just mechanical advance ...just like the 85551.

vacuum advance lock-out.jpg
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