I replaced my 235 with a 250. A set of twin headers came with the 250. My thinking was that looks kool and the headers will give me another HP or two. Big problem thoo. The headers interfered with the Steering Gear Box. Had to remove them and revert to the original Exhaust manifold. Moral of this story. Check your measurments, spacing and clearance on the Split Header before you lay out the bucks for them. 235 and 250 have ALMOST identical manifolds.
