Ok so it turns out us 8.1 guys got it better than you small block boys, gm gave us an adjustable fuel pressure regulator. Now my question is what should my fuel pressure be? Im going to get a gauge and check it. Also my plugs are pretty white leading me to think its running sort of lean so do you think by bumping fuel pressure it will have any affect? Thanks

Alex

 

I would wanna say around 58. Just my thinking though.

 

well turning up the prssure i dont think is going to help overall. i think the tune is will need to be tweeked to get the fuel just right. the pcm is going to add or subtract as needed.

 

Maby I'm still thinking stock, Dont you just hate when you work some where and have to put every thing back stock!

 

Ya I figuired it would have to be retuned to fix a problem like that I was just wondering what it would do. I wonder if the fuel pressure regulator off the 8.1's would work for the ls1 engines because it would be a cool little mod for you guys.

Alex