Is it normal for rp to drop when you accelerate or go up a hill or whatever? Seems like mine goes from almost 20k to 15k or less when I need it the most. With a heavy trailer and a hill I've seen it go to 12 or 13k. The fuel pressure stays at least 16 or 17psi. These are all commander readings. Thanks.

 

Do you have a fuel pump (dont see it in sig)?

 

Yes Glacier 392 pump, 2 mic, big line.

 

Ok, we need to guru's to answer this....be patient, and bump if you dont get a response in a day or so...