HAVE A QUESTION, AS I AM NOT SURE THE RIGHT WAY TO GO, I HAVE A NUMBERS MATCHING 87 442 WITH THE 200R4 AND 307. I AM WANTING TO DISCONNECT THE CUMPUTER, WHAT DO I HAVE TO DO TO THE transmission SO I DONT COOK IT? I KNOW I HAVE TO RUN 12 VOLT TO IT, BUT WHERE??? AND FROM WHERE IGNITION? BATTERY??