Okay most of you guy's have been real helpful in the past,many thanks!!!
Here it goes...
I have HRC Stage 2, Front mount intercooler, bored throttle body 3" exhaust, 8:5.1 Forged piston and rods.
I'am running 8.5 - 9psi. now.
I want to run about 17-18 psi. }>
I need to know what Injectors-I don't think I want to go 625cc..??
I was thinking around 550 cc
Also boost controller which works best??
***What about my computer and ignition???
What will I need for those???

Any help would be great!
Thanks again :)

I would go with 440's and and sAFC. And if you run 15psi or under you wont need any ignition tuning. Just run about 12-13 daily and then run like 15-16 on race gas at the track. But if you insist on running 17 psi then get an msd. I have heard of them for sale on ebay for around $150.

a ignition to retard is always good... anything over 10psi and if you rev around 4-7k alot i would retard timing in that rpm band...
cool
Michael 99gs- hrc stage 2

how much boost can you run if you have a stage 3 w/ the appropriate fuel system and the msd on pump gas??? What whp should that put you at??

I'm runni'n 16 PSI daily w/ out any retard.I'm auto so I never go up to 7K,and I rarely hit over 6K cause I mainly do city driving.Stay at 15 to be safe,then pump it up to 18 when you get the MSD and retard controller.If you just wanna be around 15-18 PSI I would recommend sticking w/ 440's.They're more than enough and it's makes the car more liveable(gas mileage and tuning wise).But if your gonna fork up the dough for a DFI,then go all out w/ 625's.Also,I think in Wyatt's old page he dyno's at 267+HP @ the wheel w/ 15 pounds.

Murix is pushing 20 psi on pump gas..

And that's just the beginning.

What size injectors are you running @ 20psi. ??

I am running 625's with an Accel DFI. 18psi is possible with 440's and a S-AFC on a S16G. Armond and Brad run 18psi on a S20G. On race gas they both have gone over 25psi. I believe Brad runs 625's and Armond runs 720's.