Currently my i iahve a b20b setup with JDMB18C1 head...previously i had the liberty to engage opinions on pistons...with that settled, i am curious with the JDMB16B head vs JDMB18C (GSR) head as a combo with B20B...

from the locals, many are in favor of the B16B simply due to its throttle body size and flow, valves and valve clearing, etc...and a bit cheaper than the type-R tegs head....what are your opinion...pls advice...