After testing the engine with the 5-inch injectors they took them off and installed a four two-barrel set-up that is made by SAR using Pat Musi throttle bodies. It has eight 2.5 inch injectors so the total venture area is the same. The engine made the same power using either two 5-inch units or the Pat Musi unit. They chose the Musi throttle bodies because they were the lighter of the two.	John Meaney and Sonny Leonard discuss the data after a pull on the massive 815-inch engine.

This is the “brain box” for the John Meaney "Big Stuff" EFI fuel system.

A Jesel belt drive, MSD crank trigger ignition system, and a vacuum pump are part of the engine package.