I have a project I will be starting soon and I will need some advice from some of the experts here.
My name is Jim I live in middle Tn. I enjoy working on Chevy/GMC trucks. Here is a list of my trucks
1953 3100
1972 C10
1992 C1500
1995 K2500 upcoming project (weekly driver)
1999 Silverado 1500 (weekly driver)
2004 Suburban 1500 Z71 ( weekly driver)

I want more power from my 95 GMC 5.7/NV4500 4x4 not to go fast but working it and towing.
I have been going over all the options to upgrade. Only two of them will give me what I want.
one of them is go with a 5.3 I already have 90% of what I need to swap it. This is what I leaning towards until recently. The 5.3 in my suburban seems to really have its power 3500 rpm and above which to me is a downside for what I need. Now I am thinking about buying a new L31 and using the TBI with a few other modifications . The programming is going to be my weak point. I am hoping to learn enough from all the experts on here to be able to get a good tune for my truck. I don’t think I will go ahead with it until I am confident I can tune it to work with the TBI.