engine won't idle...help

[tdoughboy37]

A little background info:
I bought a 94 atx with a blown engine. Replaced it with a good one after replacing rod bearings, seals/gaskets, water pump, etc. Did a 3.0 cam swap, adjusted the valves and buttoned er up. Now, the car starts, runs at appx 2000 rpm just fine, but when the idle drops down its a dog and dies. I just checked the timing on the belt and all lines up properly. It seems to run ok when first started and is cold, but once it heats up....
Also, I am getting no circulation of coolant into the heater core. Could this ber part of the problem??

H>E>L>P>!!!

 

[93rev2sev]

Sounds like an intake vacuum leak...MAF sensor plugged in? Throttle plate closing all the way? Hose clamps at throttle body and maf sensor secure?

 

[tdoughboy37]

Problem solved...mostly

So, Today I tore the top end apart and front side to retime the engine.... was way off. Fired right up, but still idles a little rough and tries to die when put into gear. Any thoughts as to what it could be? I've traced all vaccum lines and checked the intake for leaks and found nothing. Could it be a bad sensor?

I've been working on this thing for months and am finally starting to see a little light at the end of the tunnel