So we've had this 1973 Oldsmobile in our auto shop at school for the past couple weeks. My teacher was tuning the carb and setting the timing and I guess some fuel got dumped down the exhaust causing this:





I wasn't there when it happened, but my buddy said it was louder than a gunshot. haha

 

They look like blown up mailboxes!

 

haha pretty much.

Man that motor sounded ****** sweet without mufflers.