I have a 90 rcsb with a 5.3 4l60e swap, mods are cai, cat delete, tru duals, tune. I have a 3.08 peg leg rear end in the truck and scale 3900 with driver. I have a slip for 14.6 @ 96 with a 2.3 60' and a 9.5 1/8 @76. Tires are 235/75/15 goodyear wranglers lol on steelie dans. I need to run better than a 14.1 to beat a buddies srt 4 neon thats his best time any ideas? I was thinking e-fans, 4.10 posi and bump timing a bit will that be enough?!?!?!?!?