So I was messing with my TBI unit and removed/reinstalled my fuel lines. After I finished I started up the engine and had a funny noise from inside, sounded like a heater blower motor rubbing on something, VERY loud and annoying inside. After running it for a couple of days and listening to how the noise changed when I revved the motor or when it shifted, I figured I would look closely at the fuel lines and found that one of the lines was hitting a seam directly above the front driveshaft in the transmission tunnel. Hope this may help someone that is being driven mad by this noise. It drove me crazy....