Update on the idle. Changed the Temp sensor and put the original throttle bodies back on. Now it starts fine but once it gets to temp, the idle starts bouncing and then takes a dive and stalls w/o the ac pulling a load. Turn on the a/c add it smoothes more but idles high. The smoothiest idle is @ 1500 rpm. I've also put in a new idle control and regulator value. Any ideas? It sound like its having trouble regulating the air and fuel... but what is causing it??? Thanks!