1966 valiant worth getting a 230 (or 240 can’t remember the numbers)

Well your car is a bit heavier than mine, but still light. The back end of yours is where some of that weight difference is. Mine is light as a feather in the rear, so that's a plus. I think though with bigger tires and trying to make it hook with the 2.93 open rear end, I'd find myself with a pile of scrap metal. The sure grip 7 1/4 is substantially stronger.
That’s cool. Mine definitely isn’t a suregrip. I got a 1/2 of a parts car (my uncle cut the front clip off when he was alive and gave it to someone in GA) I was able to get the back glass, both rear quarters, roof, and trunk, Dutchman etc. it has a 7 1/4 are well but not sure it ls worth hanging onto. Need to cut a few more parts off then it will be gone and my shed full of parts. Can’t wait to have it finished and driving but still a lot of work to do.