/6 engine removal with hood in place?

I have had success by removing only the front hinge/hood bolt on each side. This allows the hood to "open" further while leaving it 'mostly' in place.
This may help:

225 Engine Specs
WIDTH
Outside Valve Cover to Prod. Exhaust Manifolds 17.3"

LENGTH
Bellhousing Face to:

• Front of Block 27.7"
• Center Line of Fan Belt 28.0"
• Front of Fan 32.3"

HEIGHT
Bottom of Pan to:

• Top of Prod. Air Cleaner 29.6"
• Top of Carb. 26.5"
• Top of Valve Cover 23.8"

Pan Rail to:
Top of Valve Cover 19.7"