Advice on moving forward

Thanks for the replies, no spinning off the line last time I went, I think it is just a real soft launch due to the converter and at the end I'm only trapping like 4700-4800 because of my gear. I would footbrake it to about 1800 and launch from that and it would flash to about 2400. The car has SS springs, cheap local auto store shocks all the way around, stock MSD ignition. I will look for an old slip.