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Mild 300 build HEI Distributor

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  #16  
Old 11-17-2017, 11:02 AM
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Not trying to start a pxxxing match but I guess we won't know how long it will last until we try it or do we just assume that it's junk. I know what your saying.
I'm 72 so if it lasts 15 years i'll be happy as a hog in a mud bath.
 
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Old 12-25-2017, 09:00 PM
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With my mild performance 300 with RV cam, Offy dual port intake with autolite 4100 carb, 9.3 CR, HEI distributor, 50,000 coil and 8mm plug wires I am looking for the correct copper core Motorcraft plug. Are the old 44's that have been replaced with the SP435 the right plug? Is the gap .044"?

Some say to run EFI plugs as they have a little longer tip, What say?
 
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Old 01-04-2018, 12:31 PM
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Originally Posted by old28 View Post
With my mild performance 300 with RV cam, Offy dual port intake with autolite 4100 carb, 9.3 CR, HEI distributor, 50,000 coil and 8mm plug wires I am looking for the correct copper core Motorcraft plug. Are the old 44's that have been replaced with the SP435 the right plug? Is the gap .044"?

Some say to run EFI plugs as they have a little longer tip, What say?
I'd run the stock plugs, just re-gapped to whatever is recommended for the HEI systems. I think .044 would be fine.
 
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  #19  
Old 01-04-2018, 12:46 PM
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Hello there. That sounds like a nice build. I have a similar build and run the oem plugs with a .055 gap. I have since day one. I believe that with the DUI dizzy they recommend the 55 gap. Check their site.

I believe it is Harte3 who uses the efi plugs.
 
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