A couple of things, the front torsion bars are too big. They don’t have any real stored energy to help with weight transfer. I ran those huge bars years ago when I ran the car on the street. I now run stock 340 bars which helped a bunch. Also don’t be afraid of increasing your launch rpm. It will probably help with your tire spin. I know it seems counterintuitive, but when you launch at idle the converter flashes higher than the stall rpm. Knocking the tire off. I load my converter to about 3000 rpm and the converter stalls about 3500 to get it to launch best. If I launch at idle it immediately knocks the tire off, and I have half the tire you do and a good bit more power. A safety thing, never trust that the car in other lane will not hit you if you cut across in front of it. If you are behind make sure they can see you. If in front make sure you can see them. Some may disagree, but what I do is if I’m behind and past the stripe I slow down and when I’m sure my car will slow and stop without an issue and I have scrubbed off a bunch of speed. I move towards the center of the track so they can see me in their mirror. Then after slowing to about 20 mph I move over behind them. Now they know I have control of the car and will follow them off. Also watch for the trails of water coming out of the water box. There are usually grooves in the burnout area from all the burnouts. Water collects in them. I line up offset from the grooves so I don’t spin the tires in standing water and throw it up in the wheel house so it can rain down on the line.