ok heres the deal, i swaped out my stock injectors (15#'ers) for some 21#'ers,but im still running lean with only 10-11 psi of boost.
i was thinking going with some 30#'ers,but do u guys think 30#'ers would be enough on the v6 with 21 #'s of boost spraying a 25-35 shot of nitrous,ive already swaped the stock pump for a walboro 255lph.so thats taken care of.

edit BTW this motor is making aprox 350 hp @ 10 psi,so say maybe 425-450 @ 21 psi without the spray?? shrugs

 

I would run 42#/hr or bigger for the 21PSI, and 55#/hr or bigger with 21PSI & Nitrous.
30#/hr is too small for this setup......even too small for your 10PSI and N2O if your HP numbers are really what you say they are.

How much confidence do you have in those HP numbers you posted??

 

i dont have a whole lot,it was taken from one of those gtech pro things.the car made 225 @ the motor on the old 2.8.Which i blew up so now its 3.1 with the worked 2.8 topend ,and gtech gave those numbers @ 10 psi with my worked top end off the old motor.i really dont know how far to belive that gtech thing though

edit though my 86 is a mid 13 sec car,and i do belive that the turbo rs would walk on it,or be dam close

 

The 30#/hrs would only be good up to about 300-350HP with boost.

 

that would be at the stock fp right?im using a 4-1 fmu on the car right now

 

Oh yeah, that is new info. What is the base pressure? What does the FMU max out at? what will your fuel pump flow at that PSI? What Walbro to you have in it? As in part number?

All of that matters.

 

ok here goes well its an eldelbrock 255lph f-body pump,but it says walboro on the pump.im assuming they make the pumps for edlebrock. i dont have the part number off hand.the fmu is a vortech fmu i bought used on ebay,i quess ti maxes out at whatever the pump will put out,base preasure is stock so 40-45 psi