A few years ago I converted my 305 TBI to a 350 TPI from a 1990 Iroc. Since my car is a manual and the iroc was an auto, the VSS connections didn't hook up properly. So, basically I became impatient and the car ran well so I didn't worry about it. Am I leaving power on the table with no VSS? I know some things that the VSS controls but can anyone tell me more completly?

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1991 Firebird
350 L98 (was a 305 TBI),T-5,Edelbrock TES and cat back,Accel manifold
NOS,subframes,jegster torque arm,MSD Digital 6
AFPR,Lakewood lcas
Hurst linelock,SLP cam (206 212 .480 .486),relocated battery,cold air,Hypertech chip,centerforce df,clutch
poly bushings and mounts
AFR 190s
Harland sharp 1.5 rockers
autopower rollbar

12.33 @ 114.83 juiced uncorrected

13.510 @ 102 non juiced uncorrected

 

At WOT?, no.
Thou, you might get better drivibility with it hooked up.

FWIW,
If you ever get into chip burning, if you edit the .bin file, change 0018 from D8 to 18 and then use C-6 as the speedo input for your VSS (this would be for mask 8D).
Probably could run a lean cruise mode.
There are a bunch of minor differences from a manual to auto trans memcal.