For any interested there are several offerings to help with a 4200 Vortec or "Atlas" engine transplant. The man that goes by the handle "efi-diy" on the Stovebolt site has a rear sump pan, bellhousing adapter for Atlas to 63 and up Chevy, and a standard trans flywheel. There is nothing wrong with a crank trigger ignition so that leaves mainly a non computer induction system. If a carb manifold comes out for one I will use a FiTech throttle body on it since they are self contained and self tuning plus I've had good luck with them. FiTech is now offering a two barrel tbi for inline 4's and 6's.
