I ran this in my old setup and it is also in the new one. With no tune it ran fine for the most part. At cold startup or when it was cold out it would stall if left to idle on its own. Every once and a blue moon it would die at a stoplight if I slowed down too fast seemed the idle just droped to fast and it could not recover. Driving there was alittle bit of bucking at low speeds/light throt. like you were taping the gas even though you were not. The power was about stockish maybe alittle soft under 2,500rpms but after that it woke up fast and hard and pulled to the 5k mark with unported gt40 heads, and tmoss stock gt lower.
I ran 13.5 or was it 13.6 @ 102mph (the only fairly healthy pass I made with that setup), I also put down 230rwhp/281rwtrq. after I lost #4 cyl., had 33% press. drop in a leakdown/comp. check, so it made preaty good power.
I dont have any drive time in the car yet with the new motor so I cannot say what I have noticed about it. I also now have a tweecerR/T so I should be able to get great drivabilty out of it no matter what now.