you can run a neutral plate but you have to weld the weights in the convertor. or just run the B&M external flexplate.. i thought that the weights came with directions telling you where to put the weights.
Picked up the 727 & stall from a guy that was going to run them with his 408 stroker, so the weights are two units with no directions on were they go.
If I run a B&M external do I still need the weights on the converter?