Donny Here is what I have; pace performance crate engine. Pace designed a new (2010) carbureted LS engine package around GM's 6.0L LS2 engine This carbureted LS crate package twists the dyno needle to 445 hp at 5700 rpm and 444 lb-ft of torque at 4500 rpm. block; aluminum six bolt cross-bolt main caps.cylinder heads; aluminum cathedral port (ls6 type).camshaft; hydravlic roller,.500 inch lift,200/203 degrees at .50 inch lift.compression; 10.9:1.intake edelbrock victorjr. casting 2908.carburator 800 cfm edelbrock.transmission tremec tko 5 speed.rear end gears posi 3.42.headers hooker 13/4" tubes.ignition oe coils and harness.ignition module pre-programmed edelbrocks ls1 programmer. What I want to do is replace the carbureted system with the new holley terminator 550-405 EFI system.I want to put a fuel system in the gas tank. To make less noise and simpler fuel hose installion.I am putting this in a 1969 pro-touring Camaro. thanks again buddy