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I'm running Platinum W8AP plugs with great results.  Platinum plugs were all we used to run in Snowmobiles back when I was heavily into those and they helped cure a LOT of mixture and cold weather problems so I figured, "WTF?" and have used them since day one in my 2,110cc.  I also have an early Magna Spark set-up with the electronic module (similar to a Pertronics) and the old style 55,000 volt, electronically triggered coil (it looks like and is about the size of a brick).  

 

VERY solid spark and the plugs should be good for 100,000 miles.  Of course, by that time, in an aluminum head, I may have to blast to get them out! (or just pull the heads for the rebuild and soak them in solvent for a few days)  

Bosch WR8AC are the same range and thats what i got. I have  flamethrower 2 coil...(3 ohm resistance) 40,ooo volt peak voltage. The Flame thrower 3 is 45,ooo peak volts.. and 6 ohms ..  I want one same shape but 55,ooo peak volts and 3 ohms  I did some math and this is what it should be to completey elimnate any problems even if it goes to 20% ethanol.      Im thinkin ahead but so far have not found a coil that hot  of this shape.      There  is (E) free gas here but $4.25 per  Gal I don't think so.... Better to beat the problem..this way

Last edited by oldyeler

I don't want the brick shaped coil . I want a coil that is shaped like a factory coil. Surely someone  makes one Because it.s going to be a high demand street rod part for any high output engine when gas goes to 20% ethanol   I have a friend with  454 early trunk and he is raisng cane about this gas. Whe antque car owners with origal looking cars want them to look correct but still run ok to these show , And we are there now with this crappy gas.

Last edited by oldyeler

 Factory gap is 26 to 28 I WENT TO 32 AND JUST INSTALLED A 60,000 volt Protronex  HV  coil  in 17 degree weather its not completely  gone  But its a lot better   should be fine most of the time . The only thing left is to restrict the cooling fan some in this cold weahter to  raise the engine temp some  to comensate  that will be tricky  with out a thermestat installed.  i may have to reinstal the flaps and thermestat   But i got all that here

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