i have a b16a1 or 2 i dont remember looking and i have on everything to put it on my 97 civic ex everthing is out of a 00 si but the head i already put some crower reds and springs but what i need to know is on cams and oil pump which ones to go with oh and how much to open my intake manifold to and also im thinking to open a little bit my head but i don't know if i do that i would have to change pistons or something else.

 

you have a b16a2, (99-00 civic si usdm motor)

a b16a1 never existed