What can i do to make my seat go back more i am to tall for my 72 cutlass

 

remove seat and drill holes a distance from the old bolts (distance to be determined by you.) then from the underside of the car put bolts through the hole and bolt seat in. a second person could be a huge help. watch out for fuel lines btw lol

 

The shape of the floor pan will dictate that not happening. You're better off modifying the seat rails to move the seat further back on them than trying to move them back on the floor.