Odd request for xj12 owners (preferably series 1 or 2)

Slightly odd request but can anyone take a measurement for me? I want to know the clearance between the top of the stock intake manifold on xj12’s (preferably series 1 or 2) and the hood. I know it will be tight for ITB’s so I am trying to decide if I can get away with vertical ITB’s even if I have to modify the cross member to sink the engine down a little, or do I need to lean the ITB’s over like the Jenvey kit.([https://store.jenvey.co.uk/throttle-body-kits/jaguar/jaguar-v12-e-type-sf45-kit-ckjr04-kit check the v12 section for my build if you are interested.