magnum manifolds/340 manifolds

I've had all three, Doug's, TTIs new shorties, and Trebligs manifolds and can tell you some of my situations. The Doug's will never work with a Z-bar setup, so if you ever want to convert to a 4 speed they shouldn't be used. The Doug's also rubbed on my passenger steering arm, and were very close to the steering knuckle. The TTIs can clear a Z bar and fit nicely, but they are very close to the steering knuckle as well and the drivers torsion bar is right where they exit. All the other cheap headers I've seen don't fit well. Trebligs manifolds are the best fitting option, hands down.