That similar to my experience with changing cams in the four cyl. The roller cam from the Magna engine works better at low speeds making lockup at 45 mph better. It's really. really good, but not perfect. With 2 less cylinders it the power pulses are more spread out. Many people wouldn't even notice but I do. It becomes more noticeable on long 50 mph grades, not enough throttle is needed to kick down but not in the smooth range. It might help if I redesign the profile on the cable take up on the tensioner. The carb motor would have to use a lot more throttle on the long grade and would have kicked down. With boost it only takes a little throttle keeping the engine pretty close to lugging.

If I adjust the throttle cable tighter the full throttle shifts end up hihger than I want.

That just gave me a thought... I should look at the cable actuator from the V6. I can understand why they went to electronic shift control. A cable on the throttle does not understand engine loading or adding boost and grades.

That and I still want to be able to lock the converter in third.

Kevin