Frenchy's rubber body mount pads are a good idea on any EB. There is no advantage to the Edelbrock Performer intake over the '69 Mustang 4 bbl intake except a 27 lb (I weighed them) weight reduction. On the other hand it guarantees hood clearance problems. There is also no advantage to an open element air cleaner. The lid has to clear the hood brace smothering the top of the carb. That's why the engineers designed a different air cleaner specifically for Broncos. The 351 comes closest to the firewall in the rear driver's side corner of the intake, not the head. Overall it's better and cheaper to keep stock parts when ever possible. Then, when your engine is up and running, experiment with after market bling.