A friend has a S&P RAMJet Injection unit on his 502 and it needs some tuning .

Need some help/info with the format of pcm S&P are using with unit. Would like to reprogram fuel parameters ourselves.
Beleive its a OBD1 marine unit for 5.7 "P" series engine. Going to run a scan to-nite with a Tech 1 to see whats going on S&P ship these super rich to protech themselves ...... Bill