Rally Racer,
Take a look in my pictures and you will see a FFR Daytona with a 418 cu. in. 540 HP/580 lb. ft Torque motor that will run away from 460/514 cu. in SPF's all day long and the top end will have them watching the rear end recede out into the sun.....as they hit the wind wall at 150.
No Donor parts in the build. There a lot of the FFR Roadsters that are also built with no donor components and the 460/514 will work just fine in their chassis. I've seen one with the TWM intake on a 460 and it looks right at home between the frame rails. The big block will not work in the Coupe due the low height of the hood unless somerbody wanted to massage the hood to make room
Name your poison....to each their own.
Tony R.