I know its not an H body, BUT.....
 

Does anybody know of a forum for 90's cutlass supreme's? I have a buddy that is having problems with his 94 cutlass supreme - 3.1 and automatic. the tranny is acting up when cold - when taking off it acts like it is in a higher gear or slipping - i.e. rpms go up but is doggy. after a while (ususally less than a minute) it is fine. same symptoms in reverse. Any ideas?