Well guys I start tuning my truck in SD it has a 6.0, 317 heads mill .030 Port and Polish by hand, custom cam by Patrick g, and long tube headers.

Well I got my cruising part close to 14.5 14.7 afr so I decide to make some changes to the VE table so I can make some WOT runs, I though I was going to get the first run to at least 13.1 13.2 but it did not I got a 14.1 and my injectors where at 120%. So I was like so with the first data that I got from the scanner I copy and paste multiply by % made another run and drop 13.9 afr and my injectors where at 145% at 550 rpm's, so I stop and left it alone.

My last truck had a 6.0, 228r cam, long tubes and my stock injectors where at 88% the difference from this one is the custom cam and the P&P heads do it makes that much of a difference?

 

What size are the injectors?

Something in the 35-45 lb/hr range would be appropriate for a h/c 6.0

 

Stock injectors, I know I need bigger but I was like surprise on how much difference was from custom cam and P&P heads.

 

Stock injectors, you're wasting your time even trying to WOT tune it.

44 lb/hr injectors were 70% IDC on my H/C 6.0 at sea level.

 

Stock injectors barely fuel a stock 6.0, time to upgrade.

 

I'm going to start looking for some now.

 

I have 8.1 (non marine) and I'm at ~88% duty cycle. 6.0/cam/bolt ons.