I've heard that they do but it would have to be a Dakota driver's manifold. I have a few of those "machined" out to 2 1/4" just like the 360 magnum and the 340. If you have power steering there is less room. I know some FABO members have used the Dakota driver on the early A bodies and the 67 and up A bodies actually have more room than the early A. Do a search and I'm sure you'll find that more than one FABO member has used the Dakota driver.
gil
gil