I got a b16a with a drag 3 turbo kit and i am looking to turn up the boost on this setup. Right now i have the stock pistons and rods. so my compression is HIGH 10.4 to 1 i think. If i buy forged pistons,rods, rings will this drop my compression, or shoudl i buy retainers and springs as well. Also what kind should i buy?

 

If you want to run a lot of boost:

JE pistons 9:1 or 9.5:1
Sleeved block (golden eagle or darton sleeves)
Eagle rods
Arp head studs
Stock head gasket
Full bearing and gasket replacement

As for the head I would go with dual valve springs and ti retainers:

Crower, JUN, Skunk2, etc