Who is running fuel a pressure gauge(s)? I found in-line gauges (1.5" face) for $39. I see that Summit sell "external only" fuel pressure gauges for about the same with 2"+ faces. And an expensive isolator so they can be mounted inside the cab. Also, electrical gauges/units are about $150+ IIRC!!! I originally thought it would be nice to have an electrical with a sending unit on each side of the filter so I could switch back and forth but, now I'm thinking of a cheap in-line mechanical. Only problem is, I would really like to be able to see the TBI pressure (after filter) while I'm running. Since my cab will be open, I'm thinking of just running a "T" off the hard line and mounting one of the cheaper ones on/in/under my dash. Any suggestions? Russ 85 K30 CUCV, 350 TBI, TH400, 205, D60/C14, 4.56 Locked Some day: 4" lift, 44" tires, massive cutting, shorter wb and rear overhang.