i am tring to put a 351w to a c4 trans but the flex plate is to big? and will not fit in the bell housing??. Is there a different or smaller size flex plate then a 13.30?? or is it the teeth the problem??? 164 or 157? or 154???? any help guys would be great i want to get this thing together.

 

the flex plates differ from a c6/aod to a c4, it all depends on what trans that flex plate came off of