Ok just got my setup together currently running a Darton 84.5mm sleeved Gsr block Stock crank eagle rods and wiseco 8:8:1 compression pistons Arp everything on bottem end and headstuds, head has some work done to it factory size fearra valves and Jg dual valve springs and retainers with Gsr cams victor X intake manifold with a s2000 throttle body Full-race T4 top mount divided wastegate manifold and a Gt4088r with a 4inch downpipe I wanna know what spark plugs to use on this setup and if the Gsr cams are going to be Ok fuel system is deffenetly setup for this setup Aeromotive pump and regulater on a fully sumped and all 8an braided lines with 6an return golden eagle rail. All controlled on a full standalone system....any more suggestions would be great looking for some axles so I can run it down the track on my 24.5x9x13 slicks if anyone as some let me know thanks Josh

 

i will say 8's. i use 8's in iridium.

 

whats your setup and do you mean 8's in NGK