I have a cam only GTO that makes 340RW....Its an A4 with the stock inj/pump..Could I hit a 100 DRY on this setup or do I need to upgrade 30lbers and MSD Volt booster..I'm not stupid but figured it wouldnt hurt to get an opinion or 2 but my guts telling me I need at least the injector upgrade.

 

I researched this quite a bit and found that some have gotten away with a 100 dry shot with cam/headers on the stock fuel system.

I have a cam/headers 01 Z and did a dry kit. I used my Wide Band and found that I was getting a little lean (13 to 1) on a 75 shot so I am going to upgrade my fuel soon. Right now I am shooting a 50 shot for playing on the street. It is staying fat and happy with this.

 

I though so,But can u establish its a inj pw maxing out or is is fuel delivery..I can add a volt booster and make my pump work harder but if its an inj probem then I'll need to add 30's to be safe...

 

I can't because I don't have autotap or hp tuners I just have the wide band. General consensus seems to be if we are going to or over 450 wheel HP we should do both a pump & injectors.

 

The stock Walbro on the vette can support 550hp (normally) and some guys are using it to over 600hp.
Robert