Well, now that I've got the Mass-Flo EFI system running pretty well on my car (1968 Mustang) I've noticed that the oil pressure gauge indicated the pressure is running higher than it used to. It's not a numbered indicator, but rather an arc with an "L" at one end and an "H" at the other. Before the engine work, if the arc was numbered by % with "L" being 0 and "H" being 100, it would run somewhere around 60%. Now it seems that when the car runs it is somewhere around 80%. Other than the Mass-Flo EFI system, of which the only things that touch the engine are the new intake manifold and distributor, I changed the heads to AFR 165 head w/ pedestal mount rockers, and I put on Scorpion 1.7 roller rockers. None of the internal engine stuff (pistons, rods, oil pump) was touched. Just a head swap and then the EFI system was put on. I put 4.5 qts of 10W-30 in, plus a quart of the Lucas oil additive, and am using a Motorcraft FL-1A oil filter. Chris at Mass-Flo was a bit stumped, and so am I. Any suggestions? Also, what are there any dangers of driving the car if the oil pressure is actually as high as the guage indicates, and if so, what are they?