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View Full Version : Plug Gap on a HEI



AZKC
04-15-2004, 03:59 PM
Stockish HEI, plug gap around 45 is close isn't it :confused:

LakesOnly
04-15-2004, 04:30 PM
Originally posted by AZKC
Stockish HEI, plug gap around 45 is close isn't it :confused:
Correct,
When GM came out with the HEI ignition, they recommended something ridiculous like .060" plug gap, but then chaged it to a closer gap: .045"
They should all be st at .045".....
LO

Fiat48
04-15-2004, 08:17 PM
Yep .045.

AdrenelineOD
04-15-2004, 08:26 PM
Any different for my 10 to 1 comp. 400 ( in a blazer, tow rig) thats what I set it at but havent even started the motor yet

GofastRacer
04-15-2004, 08:32 PM
Nope, distributer don't know what it's in, .045 with an HEI!..:)