Northstar Challenge. Possible!?
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Northstar Challenge. Possible!?
OK i realize this is a LSX forum but since we got plenty of pro's here with lot of info on all diffrent types of info i figured it was worth a shot! i got an 2004 pontiac bonneville GXP and looking to see if anybody has ANY info on tuning a 4.6 Northstar..? any info is appreciated. thanks again.