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Old 02-19-2004, 02:35 PM
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HEI Voltages

Yep, I'm still having trouble with the HEI. Anyway, what should be the voltage on the little bushing that sticks through the cap to contact the rotor when the engine is turning? I get 12 volts. Thanks.

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Old 02-20-2004, 06:38 PM
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Well I finally got it tonight. After all that trouble (replaced pickup, module, coil, cap & rotor) it was the damn spark plugs. I was about ready to buy a whole new dist! The spark plugs were pretty new but 6 out of 8 were bad. Who knew?!?! I could've had this thing running a month ago if I had just tested the plugs. At least that's over with and thanks to everyone for all the suggestions on the previous thread "GM HEI Blues".
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Old 02-20-2004, 06:46 PM
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You must have been using Champion plugs.
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Old 02-20-2004, 10:25 PM
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They were actually Bosch "Super" and, let me tell you, they were by no means super. I got Bosch Platinum this time and they seem to work quite well. Never again will I buy the Bosch "Super".
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Old 02-24-2004, 06:45 AM
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I've b een steered away from Bosch Platinums by several people --even the "plus" sereis. Seems they're great out of the box, but in a few months they break down. Now "I" don't know it for fact since I stayed away, but if it acts up again, sdtart there.

I was told to stay with AC, Autolite or Motorcraft (go figure --OEM stuff), so am using THEIR Platinums in everything.
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Old 02-24-2004, 10:08 AM
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i have tried out alot of plugs myself,i have a mallory unilite dis in my 350 chevy.i have to use acdelco r45ts plugs run hot and last longer than anything else Ive tried.used the r45t and they worked great with the factory hei,but not in the mallory.
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Old 02-24-2004, 11:01 AM
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Although they are not platinum, I got soem ACD Rapidfires last week. I don't know how they'll last compared to others, but they are considered GM Performance product.

I am pushing them with an Accel coil, so they should be fine. Time will tell.
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Old 03-04-2004, 07:09 AM
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Quote:
Originally posted by Mista_T
They were actually Bosch "Super" and, let me tell you, they were by no means super. I got Bosch Platinum this time and they seem to work quite well. Never again will I buy the Bosch "Super".
Hey, I use to run bosch supers when trak auto was still around. I never had a problem with the bosch super plugs. I did however have a problem with the bosch platinum 4s, now those were crap!

Found the best plugs to be Splitfire plugs, they worked great on the GM HEI ignition.
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