Idles and gets lean

[graystang]

I am having a problem with the car getting very lean after it idles for a couple of minutes. When the car gets lean the car continues to get hotter and hotter. I have a WEGO as a monitor but it does not control the factory computer. Looking for any advice on what to check. The car runs 140 on the highway. I have replaced the water pump(edelbrock), it has a spal electric fan, that is in a fan shroud, a 180 thermostat and water wetter. The radiator is a AFCO 2 core alluminum. The engine is new and the o2's are also Plus the BAR sensor. The ACT was moved to the throtle body intake tube elbow.

 

[ROK32]

what is your fuel pressure at? do you have an adjustable fuel regulator? if so, are you getting vacuum to it?

 

[1988WHTGT]

I wanna know how this turns out....