I am in the process of installing a 93 cobra motor into my 64 Comet. I have along with the engine and T-5 trans, the complete main wiring and engine management harness. I have read numerous books and messages on this forum about such installations, but I am still not clear on a few things. I notice there was a purge canister connected to the passenger front rail in the engine compartment that connects to the canister purge solenoid. Do I need it use this? If I don't use it will it effect the operation of the motor. I guess what I am asking is exactly what can I NOT use on the harness, and the engine will still operate normally. Any help, suggestions will be deeply appreciated.