Me too on the mech. oil pressure. Had an Autometer electric and sender was a problem from pretty close to the beginnning. Any dip in voltage and the thing would read erraticly. Had to restart the car and then it would read correctly again for a few minutes and then back again to BS. Now that I have the mech installed, I see that I have great oil pressure for a 150k engine. Once hot, idle pressure is 35-40 psi, cruising around it follows the revs very well. I put in the plastic line for now and plan to use it to pull the braided line in place very soon. Dont like the idea of oil in a plastic line in my interior either. Used some 3/8" fuel line to protect it from the engine heat when I ran it from the firewall to the oil press. tap. too close to the header for plastic,teflon or whatever.....haha.
87GT,SD,302,Stkheads/cam,70mmTB,GT40TubularUpper w/ExploderLower,3GAlternator,3rowMishimotoAlumRadiat or/Taurus3.8Fan w/DCC Ctl,ProMotionCobraT5,SteedaTriax,3:73,BBKUnEqu,H-Pipe,Flo's,155Lph,Pulleys,K&NPanel,MMAdjRLCA,Bilst einHD's,MMSFC's