I would keep the 235. You can bore them out, etc but no point. Matt, do you get that Auto Restorer? It had like 4 parts of articles in different issues on how to build a 235 with 200 HP on a tight budget. Most of the work is done to the heads and exhaust and a 2 barrel carb nothing more. And you can do it all at home too with just the porting and polishing, etc. Everyone is always talking about 300 inlines, the 292's, etc but you never see many people fixing a 235 up. I think it would be sweet to keep it the way it is now and slowly save up and in a year or two just completely rebuild the thing from the bottom end up. Cliffords is the place to go too man. They got everything basically which I am sure you already know. Keep a 235 in it. At least IMO I would.