904 to 727 upgrade.

Maybe a warped valve body. Easy to check, just split it and put 'em on the glass.....
Dailymotion Video Player - Sir Mix A Lot - Put 'em on the Glass


Possibly. I used a straight edge to check it and it seemed alright. I pulled it apart to clean it out when I built it and compared some of the mods to a transgo instruction sheet I had. TCI did a few extra mods to the valvebody compare to transgo.

TCI should have checked for a warped valvebody when they modified it. Especially for the 400-450 dollar pricetag!