HAceT
Member
Ok so here I am stumped.....I just finished firing up engine #3, 350 bored 60over with Comp Cam part number 12-242-2 and my 305 High Output heads that has been modified with larger valves and port and polished. The motor had been sitting for about a year or so. The old 327 seemed to run warm some and I figured the electrical temp gauge may be bad so I installed a mechanical gauge too. I found that the electrical gauge was off by about 5 degrees. Well I have the electrical gauge installed in the Drivers head and the mecahnical in the Passenger head. I drove the car up the road today and noticed after playing alittle the driver side stayed about 160 but the passenger side climbed like crazy but the dropped back down. I am talking like up to 230. It only did it a couple times. I thought it might be air but after checking the water after running it some it was fine. It did it a couple times more and then stopped. So my question is what can it be.