What you get with jets too big

[Old Henry]

Just removed the pistons from my engine to replace with new because one blew apart. Here's what the tops of the pistons looked like after just 30,000 miles.



Then just checked the jets in my carburetor to see if they were too big and, sure enough, the carburetor had come with 51's which I've been driving on for at least a year at elevations generally over 5,000 feet when the specifications for my altitude are 46's. Plugs were never dark like this piston head but obviously the jets are too big. Just ordered smaller ones from ken ct to put in. Not going clear down to 46 but probably will try 47's. Hopefully will help my gas mileage too.