whats the difference between a b16 head and type r head? ... b18c5..............

the reason for this is because i want to buy a supercharger and this guy says its for a b16a head or b18c5 (type r) i would be putting this on my gsr.................. i didnt think the was a difference between a type r head and gsr head, except the internals.... uhh advice?

also, if i use a FMU do i need a larger fuel pump?

 

it will definately not fit on a gsr head guarunteed. and yes it is preffered to get a fuel pump with an fmu, and if fuel pressure is to high get a fpr

 

Square peg-round hole on that one bro...keep looking for another charger