I've wanted a CB-750 for years now, getting a little older and am able to consistently keep the things I need around, so decided to finally get something I want. I'm having a 78 CB-750 delivered tomorrow. My main question would be, the 78 has the SOHC, but I'm seeing alot of affordable DOHC engine's available, obviously the twin cam is probably gonna make a little more power, but if it's the better choice then why are so many available compared to the SOHC my bike has. It's not the prettiest bike, but it's a runner and my gut is telling me to stick with the SOHC. Is this a good idea?