I am about to install my setup which is;

ITR - UKDM, with I/H/E at present.

This weekend I'll be installing Mugen 2ply gasket and the S2S2 along with the S2 valve train (excl valves). It's getting tuned at the end of the month with a Hondata s200, I am wondering if I'll need to upgrade my stock injectors

 

Depends on how high you're gonna be revvin it. I know these cams like to make power up top so....to maximize the potential of the cams, I would say yes, do some 310's

 

I am using the same cams and stock injectors on my LSV motor and I am having some very noticeable tuning issues with the stock 240's right now. My motor will be tuned next week using a set of RC 310's to help sort out the bugs. I'll let you know how it goes.