904 torque converter recommendations

Ok, we all agreed that the 360 is externally balanced, lol ! Do you still need a weight balanced converter ? How can I verify that I have locked converter/tranny or not ? Thanks guys

It depends on which flex plate you use. B&M makes a nice round plate with a "bite" out of it to be used with a neutral balanced converter. With the stock flex plate, yes you need the weighted converter, as well as the correct balancer.