zahndok

I put in an electric Gaffrig gage to monitor my tweaked 575sci and I've been satisfied that's it's accurate enough to alert me to a problem. I have mine plumbed to a boost referenced fuel regulator. We did originally set the fuel pressure however with a mechanical gage at the regulator and if there is ever a question you can temporarily throw a mechanical on at the regulator to double check that your electric is working properly.

jimjomack

Aeroquip makes a PTFE hose size -3 with reusable fittings you can install at each end. This hose is rated to 3000psi burst. I have used it for my mech oil pressure lines. Just cut it to the size you need. 40 feet of it cost me about $300 with fittings

robyw1

Use an isolator with premade steel braded line if you must use a mechanical gauge. I would never use that nylon line because if that line should ever get a hole rubbed in it then you have a dangerous situation. In the event of an accident and the line was severed you would have a flame thrower under your dash.

Never use that nylon line in any application involving flamable liquid. If you read the instructions it will warn you not to do so..

Roby