you dont need the bigger injectors really. the re-tune should solve any problems in that dept. as for gears, these are basically a personal preference thing. 4.10s should be fine for the street cuz from a 30-40 roll in second, the RPMs will be higher and more into the powerband. I've ridden in a friend's car with 3.90s and he had no trouble getting up to 130 or so on the street in a matter of seconds. Mind you his car had several mods including a 75shot of nitrous. Everyone here will tell you 4.10s because...well thats just the way it is,lol. But you should probably see if you have any buds with 4.10s and give their car a spin. My personal preference is 3.73s, not too steep but in reality, not much better than the stock 3.55s

 

get some gears and a good suspension kit with springs/shocks/struts/sway bar. just my .10

 

thanks for ur help....i got alot of thinking to do