What does TBI OHV stand for or mean in reference to engines? And SFI DOHC?

Question

What does TBI OHV stand for or mean in reference to engines? And what does SFI DOHC mean. I am talking about two different engines. The TBI OHV is a 93 Buick Roadmaster with a 5.7L V8 and the SFI DOHC is referring to a 2001 Chrysler Sebring Convertable FWD and 2.7L V6.

Answer 1

I am going to add to what guest 6529 said. Sequential and Multi port fuel injection are the most fuel efficient. I read and was told Sequential is slightly better than MPFI. Throttle body injection is the least efficient because it feeds an almost constant stream of fuel in the intake. There is no control where it sends the fuel and how much.

Answer 2

Guest6529 each head doesn't have two cams DOHC just means the engine has two cams...