If I could change the drivers side exhaust to a straight dump my new steering box would fit much better. My question is will a 1966 exhaust manifold from a 327 fit a 1994 350. Alternator or anything else is not an issue. Thanks Joe
If the exhaust manifold needs to be tucked in closer to the block you can always have it angle milled on the manifold to head mating surface to give you more clearance.
Sounds like you'll be building a new exhaust system so you might want to consider Corvette rams horns. They are 2-1/2".
I think 69 or so c10 truck ones will dump out a little more toward the back on the drivers side if there are any steering clearance issues for those reading this .
That would require relieving the attaching bolt holes and squaring off the face. A better solution might be angle cutting the exit flange and brazing it back together...did it years ago and it worked out okay.