'69 Barracuda T56 swap, floor, cross member
Had to grind a 3/8" inch or so deep concave indentation into bell housing to clear the oil filter. Also a small amount on bottom of bell housing to clear the lower header tube. Could have dented the header but so far no header dents to date so didn't want to go that route.
Used a a Harbor Freight electric belt file with 3M 60 grit belts