I just completed the installation of the F4B manifold and Holley carb. The space between the top of the air cleaner and stock hood on my car is some over 1/2 inch. A phenolic spacer of 1/2 inch should clear. I found a .28 inch spacer at a Mustang specialty shop. It has the correct PCV vacuum connection and should have ample clearance for the hood. I am expecting its arrival any day. I’ll post a message on line when I have it installed.
from sunny South Dakota,