Winter is Coming
Time to think about winterizing your Bolt.
A good Tech Tip WINTERIZING YOUR TRUCK including a link back to the Forums for additional tips.
sounds like my 50 chev(216) engine,,,I burn unleaded in it too,,my truck sounds like your 63 does,,,,i didn't take the head off yet,,i'll try a compression test first,but the way it sounds,,i probably have some bad valves,,,just my 2 cents worth