i got a b16a2 block and i got the 4 dowl pins, and i got a obd0 b16 haed and looks like to me what i see im jus useing 2 pins.. if u looking at the block i be useing 2 dowl pins by piston 1 and 4.. my info i need will it hurt anything if u dont use the 2 middle pins... do u guys know please help