I've gone with Vortec heads on my TBI with a carb intake (no coolant passage under the runners) and headers (no heat pipe to air cleaner) so even with my AE dialed in when up to temp, in cold weather and especially with a cold engine I get a nasty lean stumble on accel. When I add AE, I get a rich bog when up to temp at moderate ambient temp.

So...the plan is to add a MAT sensor and more AE when the manifold temp is very cold. I bought a MAT from Napa to go in the #8 runner (#ECH TS5100) http://napaonline.com/Catalog/Catalo...RecType%3aA%29 and modified a CTS plug to wire it in.

From what I read, 1 wire goes to pin B-9 and the other to ground. I grabbed the BPLH 4.3 bin from here and copied these settings:
MAT Sensor flag
Error 23 Low flag
Error 25 High flag
MAT Spark vs Vac vs Temp table
MAT Spark Multiplier vs MAP
MAT/CTS Nultiplier vs Airflow
TPS Difference AE Correction factor vs MAT

I dont know if anyone else here has done this yet, but I'm gonna wire it in soon and see how it works. If you have any tips/tricks I should know about before I do it, give a hollar. I have a 1-mile drive to work and the lean stumble during cold mornings drives me nuts! haha