2 questions
 

1. what spark plugs should i be using for my setup?

2.what kind of oil would be better for my engine?

SETUP:
rebuilt 13b and streetported
850/1600cc inj.
single t04s
full extreme fuel system from rx7store
greddy elbow
custom top mount intercooler
act clutch and flywheel
custom oil catch can
4x msd coils
tial bov and 44mm wastegate
4 inch turbo 2 back exhaust
AEM EMS
etc....