Being that I'm going to put a Turbo on my Falcon's 200 I6, I want to add an oil preassure gauge, boost gauge and an air/ fuel gauge on a mount under the dash, all mechanicle gauges ( except air/ fuel, I also would run copper tubing for oil press ), I also want to keep my stock oil pressure idiot light in functional order, is this possible? or would I need to compleatly disconnect it? also what about using a nitrouse full throttle switch ( for blow off valve activation ) on backwards ( circut closed when throttle is not depressed ) so the blow off valve activates when I let off?