First just a brief word of advice, fill out your BIO before the VMF police issue you a summons, lol. So the manual I have says that you need to check fluid level first, next see if either hose to the top cylinders is kinked (usually the one operating a little sluggish). If everything to that point checks ok it says to replace the sluggish cylinder. Before replacing any cylinder make sure that it isnt something mechanical thats possibly binding. Also if you dont already have one you should get yourself a Shop Manual it can help you out with most repairs.
SCOTT
65CONV, C-CODE, T10, 4BBL
HOPE TO BE DRIVING SOON....