GMPP ZZ502 longblock
I bought this brand new ZZ502 crate engine from a private owner. It is the same base engine as the Ramjet 502, and I decided to build a Ramjet from scratch with upgrades from the GMPP version. I will be adding a 1000 CFM throttle body and 42 lb/hr injectors to the stock GMPP EFI manifold, controlled by a Holley Commander 950 ECU.