Do youhave oil blowby. Or leaks? Oil in the combustion chamber will cause pinging, perfect example 360 magnim. BEER barrel intake allowed oil to seep causing pinging[/QUOTE
That's a good point. It does use a little oil although not enough that I've ever seen it smoking. The lower end and heads only have about 43000 miles on them from new in 74. Of course that could mean short trips for much of it's life. I'll have to see what the compression test tells me. The engine really runs well other than the occasional pinging but I've never thought it had the punch of 318's that I've had in the past. It may be more tired than the low mileage would indicate.
