RPM's

727, 2800 stall converter
3.73 gears

the two mileage killers.
you could switch it to manual shift.
you could switch to 2004R and all that rigamarole to get a lock up converter
you could swap the rear to a 3.23

if it was my money i'd do a passon 5 speed (has overdrive), keep the 3.72 rear
[ame]http://www.passonperformance.com/images/stories/passon_documents/Passon_5-Speed_Flyer_2010-11-18.pdf[/ame]

but you will need pedal setup from a salvage yard, bell housing, clutch, flywheel (external balanced 360 is different than internal balanced) etc etc etc

so the summary answer is $$$ or drive it like it is