Corvair owners installed headers too.
Mainly floated, but one 10-22 bbl is completely bedded with rtf silicone form-a-gasket, and has won money. Nothing ventured nothing gained in the rimfire Crap ShootMy CZ455 barrel is floated and shoots well.
My 10/22 Kidd barrel got remarkably better when the barrel was bedded for about two inches just ahead of the receiver. Basically, it's a crap shoot as to what is correct.