OBR build great engines and have GREAT customer service. So far the only thing I have of theirs is a race ported 30.5 kit I put in a motor I built.
One of the many good things about OBR is they are constantly testing and figuring out ways to make engines more durable and get more HP out of them. They just came out with a new version of engines that are going to take the place of the Race Ported version call the Prostock that is putting out about 1/2 more HP then the Race Ported version which are as cheap and in some cases cheaper then the Race Ported version.
If it where not for my situation I would all ready have one of their full mod long rod engines. I know many that are running their engines and most if not all are very pleased with them.