727 torque converter questions....

So would I be ok with a 2500 stall that was behind a 340 and put it in a 71 big block 727 - going behind a stock rebuild 69 383 Road Runner engine in my 68 B'cuda ragtop with 3.55's and 26-27 inch tire height? Opinions? Too loose? Will be a fun cruiser, not a race car.