Idle went nuts.

Lol!! First I clicked this thread, and realizing how appropriate the title is!!! Sorry, what happened to You isn't funny, but Ya gotta admit....................
BTW, that happened to My built slanty's 1st go 'round, using a 2245 Holley 2bbl., I used an aluminum nut to lock the air cleaner stud so it wouldn't come
loose..............hmmm didn't work, Loctite................... at least there's 1/4 mile between the piston & the head, and it was aluminum.......ting!ting ting tingaling!
then quiet, then rattle and it started missing........I drove it home...........................