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Smartass [8D]
I had a vortech HO kit on my S197 sixxer. got it to run mid 12's on the stock longblock.
WAIT wtf all you did was slap on a vortech on your v6 s197 and you ran mid 12's???!?!?!?!?
There was a little more to it than just that. With the Vortech I was running mid 13's still with the one-wheel-peel.
To run mid-lower 12's: vortech HO kit, upgraded fuel system, 8.8 rear out of a GT with 4.10 gears, dual exhaust, CAI, dyno tune, I had a 150 wet kit but only jetted for a 75 shot, and a good driver.