not really.

If you've got enough power to burn through first gear, thats more than enough for a good 60'. Just practice your launch until you can get good traction without bogging or burning out. Also, if your camber isn't zeroed out, the tires (regardless of what kind) wont be able to grip to their full potential. Get an allignment and practice your launches... your problems are all in the 60'.

As for the engine... don't expect any improvements 'till you get it on the dyno... butt-dyno tuning and internet tips aren't gonna get you anywhere.

BTW, stock LS pistons still in there? If so your compression really isn't where its supposed to be to get the most out of those cams

:edit:also, what transmission are you using? That could make a huge difference.