I have a 235 (58-61) in my 49 chevy pickup. When i start it up i show about 25 on my gauge. When i start driving and it gets good an warm it looks (on my gauge) like i go down to around 5 pounds. Gauge also seems to fluctuate up and down running through the gears. Do i have anything to worry about here? this is not a new or rebuilt engine, runs good and quiet, start good. Any advice would be appreciated. Thanks.
