Camshaft to Small???

I ended up going with a Howard's cam (see attached cam card) and this is how the car sits presently(see attached photos) I had the trans rebuilt and mated to an ultrabell, and rear third member rebuilt with 3.73 gears since my last post in this thread. I am hooking up an american shifter company dual action shifter to the 518 and then patching the floor back up correctly this time. Hopefully everything works as intended...