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V · 03-01-2015, 10:22 AM

That 389 is with the mods in your current sig?
Full exhaust too?
By any chance you have any numbers prior to the FAST setup?

I'm planning a build and so far haven't decided to go to a Fast setup. Ill have a ported stock tb and ls6 intake. I made 425 with with an almost identical setup years ago and the tuner said going to a fast 90(back then) would get me over the 450 mark. The current goal is 500 but will include completely worked ls6 heads instead of stock ones, so I'm thinking the fast may be needed to get every last bit.

03-01-2015, 10:22 AM	#7
V Stalker Join Date: Aug 2004 Posts: 12,082 iTrader: (12)	That 389 is with the mods in your current sig? Full exhaust too? By any chance you have any numbers prior to the FAST setup? I'm planning a build and so far haven't decided to go to a Fast setup. Ill have a ported stock tb and ls6 intake. I made 425 with with an almost identical setup years ago and the tuner said going to a fast 90(back then) would get me over the 450 mark. The current goal is 500 but will include completely worked ls6 heads instead of stock ones, so I'm thinking the fast may be needed to get every last bit. Last edited by V; 03-01-2015 at 10:22 AM.