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zxken24
04-19-2006, 06:31 AM
i have a 1990 lt 80 it's bored one size DG pipe K&N filter head is ported and polished what would be my best bet on changing the MJ any help would be greatful

LT80
04-19-2006, 07:13 AM
With a "ported head" I'd say 87.5 or 90 main.
As allways, let the plug color guide you. :)