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sammy · 04-22-2012

is your 91 a zr1 supernatural 475?i have a 92 supernatural 475 without the aero bodythat made 392 rwhp with the only mod being stainless works headers . totally stk it made 373 rwhp.

04-22-2012	#20
sammy Join Date: Jun 2010 Location: Lone Pine, CA Posts: 580	Re: dyno numbers / upgrades done is your 91 a zr1 supernatural 475?i have a 92 supernatural 475 without the aero bodythat made 392 rwhp with the only mod being stainless works headers . totally stk it made 373 rwhp.