Im running built sr20(Cp pistons, manley rods, port polish, headwork, gtx3071r etc) in my datsun and I had cooling issues all along, at joliet autobahn track(close to chicago) it overheated after 5 or 6 laps(jumped to 230F).
Not really sure what to do about it yet, I was going to look into it soon(ish)
What are You planning on doing as far as cooling goes?