I am putting a v8 in the truck, which formerly had a 6 cyl. The pedal linkage for the carburator was an arm attached to the linkage thru the firewall that faced down, and the motion was a push. The v8 needs the arm to extend upward with a pulling motion. I suspect that the stock v8 linkage for this model truck is what I am looking for. Where can I get the part ? Thanks in advance.