increase HP on a 273

thanks a lot guys, i guess i need to figure out what im working with in the rear before i start bolting things in. is there a way to find out the stall speed in the tranny with out removing it? and what about the rear gear ratio, i can provide a VIN, or tag numbers to help.

My book says: Stall 1950-2150 rear gear ratio 2.93 or 3.23. My opinion: Small cubes + adequate engine building = good gas milage and better than normal performance. Ask the leaning engine fellers.