[stephen low]

I'd need to go back and try and find out what engine mounts I used but suspect that might be a starting point for you. Wrong mounts and the engine would be standing taller in the engine bay.

As Albanycobra has linked, my 5L with the standard plenum fits easily.

My only bonnet clearance issue is that the outer moulded rail on the underside of the bonnet has been touching the intake tube.

It hits just on the bend just before the plenum intake point as seen on the second pic in the link.

A quick look in my file and have found the invoice for a pair of Mackay engine mounts ,Burson part A1140. I've hand written Ford Falcon, Fairlane 8 cylinder 1966 onwards as the source.

Does this help?