Sleeper 64 Dart on ebay

reportedly (I've seen pics of several of em) that a B will easily fit with 68-70 HP manifolds (I have a 63 valiant/451 in progress) & I saw a pic once of an early A with a 440 (caption said it was a 440) with the max wedge ex manifolds! I will be using a set of streetmaster mts purchased way back (not sure if they are still available).