Try this company. My buddy bought 2 Honda motors with warranty and was pretty competative. The last motor he ran on til h sold the car. The other he killed.
Unitex Motor Trading
http://www.unitextrading.com/engine_catalog.htm
Engine source in Texas
Re: Engine source in Texas
JHOT is another North Texas one and they've been great to me and numerous friends of mine. ATS in Denton as well deals with MR2 stuff so they should be considered too.