The 235 will be a noticeable upgrade, particularly one that's been beaned up a little. The extra cubic inches and the insert-bearing connecting rods are worth the effort to make the swap, but stuff like multiple carburetion and dual exhausts on the 235 cylinder head that's basically a glorified tractor part that was designed in the early 1930's is a lot of wasted time and effort. The thing can't breathe well enough to take advantage of the extra cam, carburetion, and exhaust capability. It's like taking a world-class Olympic sprinter and making him run with his mouth duct taped shut and a couple of soda straws glued up his nose.
The dual carbs and exhaust will impress the rubes at the weekend show and shine car show who don't know a camshaft from a chamber pot, though!
Jerry
