@DannyP so you feel it is ok to drive the car on the highway for a distance even if the temp is in the 380s? We verified cylinder temp gauge is accurate with scanner the other night and its on cylinder 3. Oil pressure gauge runs 200-220 when you are warmed up and it is 45-50 mph. Maybe the engine just runs hot and im throwing away. I drove it 4-5 miles at 45-50mph through town the other night after cutting hole in engine lid, wrapping exhaust next to valve covers and checking timing. Seemed ok and in 320s then I got on the on ramp and wound through the gears shifting at 3500 and was feeling good about life then looked at temp gauge and it said 386 so then i reduced to 50 mph as i got to top of ramp and nursed it to next exit and returned home under 45-50 mph and kept at 350 or less.