what little gains to be had aren't worth it in my opinion.
Charge robbing is more of a N/A thing with lairy cams. I don't think the starlet cams are lairy and it's getting air rammed down it so I would imagine it wouldn't make it worth the spend. Better of spending the coin on a big turbo in my opinion.
Although a puler has that setup iirc.
Well if you look at the rb26 that has ITB's
The 4age 20v has itb's which give it most of it's power (I say this because 4age 16v's with itb get similarish power), If turbo'd at about 8 psi you see 210bhp so imho it is worthwhile if you can get it done without costing too much like a d.i.y type mod.
People with megasquirt would be able to do ti with bike throttle bodies and use the tpe from the bike as well so no no need to mate the crappy stock one.