Great! Well I think I know what route I will go then, besides I had the BD 5psi warning light on my other truck and the electric switch malfunctioned and was lighting up at higher rpm's with around 12-14 psi , I will go mechanical then. I was going to go Edge Juice w/ attitude to get all the gauges, but I already have an Edge comp box installed non-tapped. I think I will just go mechanical gauges instead like you guys say. I have a 53 block in my truck which just turned over 360,000 kms hauling a camper up and down our Coquahalla highway in British Columbia Canada. No cracks yet running non-tapped, but I am wondering if it is save to tap with a 53 block?