Re: PCV Valve on a 359

Posted by Mr.Pushbutton  On 2009/9/4 15:35:15

I supect that your problem is the infrequent running. Your straight 8 engine does not need any engineering improvements, Packard had been making that engine for so long by then that they had it down cold.
Start the car and let it run for hours, rev the speed up every so often and drive it around, under all driving conditions and see where it's at after that. Did you suddenly start using detergent oils in that engine? Has it been rebuilt recently? Have you dropped the oil pan to see what's down there?