I was wanting to know if an Aeromotive fuel pressure regulator will help me out with my mods I have now and what exactly will it do?

Lingenfelter CAI
160 thermostat
Hypertech Power Programmer
Airfoil
MSD Plugs and Wires
Casper throttle response calibrator
Y-Pipe to a Corsa catback exhaust
Strange 4:10 Gears
TA rearend girdle
Nitto 555 tires

And what should I get next and there on?

 

The only thing an AFPR would be good for is raising the pressure to allow the injectors to flow more than they are rated for. But you don't appear to have enough in the way of mods to require injectors any larger than stock, so the AFPR isn't going to be needed.

If you decide to go ahead with it anyway, reprogramming will be necessary to reflect any changes in injector constant as a reswult of fuel pressure changes. And do a "search" on the Aeromotive AFPR... I seem to recall an awful lot of posts over the past few months from people who had problems with the Aeromotive.