383 tuning help

[Fast355]

Fast, Thanks for the above post. I have a new Delco EP376 pump Not sure what it is but I’ll look it up. I would think you want a AFR in the 13’s at wide open correct? I got a wide band hooked up and an LM1 on the seat next to me and went for a drive..Runs fairly well driving it normal but it has a lean heasation if you run at 25mph and lightly step on the throttle.. Also I went WO up a hill and in no time the AFR went into the 17’s. Not good
So I’m trying to tunerPro up and running as that’s another challenge with my limited skills with a laptop..

Delco EP 376 pump. Will this do?
http://www.gmtuners.com/tech/fuel_pumps.htm

Looking at that chart that pump should be fine, good for 550 hp @ 32 psi. I did not realize you had already upgraded the pump.

[C2500]

Fast pumps not in yet I have it here new inn the box and was asking if that one will do and it will.. Thanks