Hey the best bet is either the Poor mans ITR,or a stock GSR with JDM not USDM,JDM b16 pistons,p30 pistons,reason why JDM B16 pistons,u get more compression,the Poor mans ITR is like 11:6 compression with B16 head,b16 pistons and gsr bottom end,and u keep the gsr rods and put the b16 pistons on...