These runs were all on 215/70r14 tires similar to BFG all season Radial T/A. By launching from idle and squeezing it on I've generally able to avoid spin if the launch pad is sticky.
I turned up to the track one afternoon to see this immaculately restored 4 door valiant which the owner was pulling the exhaust off before getting teched. Later on I see the car in the lanes and we start talking and he shows me around the car and it looks stock with 225 street radials and stock suspension. Opens the hood and all I really notice is the Airgap, a Holley 650 dp and headers. Didn't think much more about it until they pushed it to the line and it ran a 12.6 @ 105 from memory. WTF!
Anyway It turns out its a 318 with 11-1 comp a 218 hydraulic (268H Comp cams which only recommends 9-1) and ported 318 heads with 3.23 gears .The heads turned out to have been ported by the guy I take my heads to have flowed and he implied that the valves are really small i.e. probably stock. Turns out the owner is a tuner so he has a fair idea of what he's doing but this carb came from the guy Shrinker trained name Gregory. He went on to tell me that the smaller carb accelerates the car down the track quicker. There's more to the story but you get the idea.