what size fuel injector should i go with?

right now they are stock and my setup is lingenfelter CAI w/4" K&N and FRA mod, no MAF screen, 1LE intake elbow, BBK 58mm TB, P&P hogged out and thermal coated LT1 intake: gasket and port matched to a set of stage 2 CHS P&P LT1 heads flowing 280ish with 2.02 and 1.60 valves milled .010 and with the .036 thinner head gasket and 53cc chambers, rebuilt 350 LT1 with clevite 77 H series bearings and speedpro plasma moly rings, running an LT4 hotcam, taylor OVC wires, NGK iridium plugs, jethot LTs, no emissions(cats,egr, air,etc) 3" SLP dual/dual catback with single 3" cutout, BBK 25% UD pulleys, TB bypass, 160* stat, LT4KM, PCM4less tuning and OBD1 conv., 1.6RRs, LT4 ED TC.

im getting ready to have it dyno tuned locally but i have this itchin suspition that she is running at too high a DC so i was thinking of goin with SVO 30#'s and a racetronix fuel pump.

 

You can make 425FWHp with 30lb'ers@39PSI with a 88.5% duty cycle
You can make 500FWHP with 36lb'ers@39PSI with a 86.8% duty cycle.
450FWHP@45PSI 30lb'ers-- 88.4 duty cycle.
Soooo if you can get the fuel pressure up you could go up on HP quite a bit.

 

The 30's and the Racetronix pump kit should be fine.

 

so wheres the best place to get a racetronix pump, a 3" elec cutout(plate only) and some 30#ers

 

Joe, More performance sells the Racetronix pump and wiring harness for $220. I emailed Thunderracing telling them that More sells it for that price and they price matched them. I think Thunder sells the kit for $250-60 ish. Get the Ecut out from DMH, he has a 4 year warrenty on them. The 30lbers i would suggest checking stang forums as you can get used SVO 30lb ones there pretty damn cheap.

 

I believe this would help.... http://web.camaross.com/forums/showthread.php?t=301475