Where I can find a 4 speed setup for my 71 chevelle?
Keep scanning the Team Chevelle parts for sale ads. They turn up every now and then. Also scour the local junkyards if you have any good ones near you. I just picked up one for my 72 from a GTO in the local yard. (Try to find one the same year as your car as there are minor differences that will need to be corrected if changing out from a different year car.) GTO and Monte Carlo 4 speed setups will work as well as Buick GS and similar A-body cars.