So i picked up a 95 integra. I know a little about but b-series engines but not this one. Apperantly its got a b20 bottom with b16 top. Does this make sense and is it common?

Im also looking to boost this, nothing to crazy, just a bolt on weekend *****. Id rather not do any internal work and keep it simple with a little more pep.

 

https://honda-tech.com/forums/acura-integra-6/long-time-listener-first-time-caller-2829703/

Heres a little more info on the car.