I ran one of these in a 68 Nova for ever(250,000 miles) It never smoked, but did have a ton of blow by. Would vent out the cap on the valve cover. Biggest issue was the PCV valve. It would get sticky and push oil into the intake. Cheap part and easy to change. Caused all sorts of running issues when it would go bad. It could be just that easy. Compression was good, but a lot of wear and loose pistons were my real problem. By 1978 it was done. Ball joints were the reason I got rid of it. Back then the car was worth about 800.00 and the parts alone were more than that. Try the PCV valve and see what happens.


Steve H