[Mgs] Performace queery

[Malcolm Jeffcock]

I have a 74B. It has a strong pulling high compression engine but lately I have experienced a quirky thing: I can, if I chose accelerate smoothly up to about 5K revs in every gear-I have done it only after experiencing what I am about to describe as my trouble. If I am on the highway with OD engaged cruising around 3500RPM's if is start to accelerate I experience a loss of power, the car hesitates and only when I take my foot off the gas and let the revs drop can I then accelerate-but only to about3600 RPM. Also if I am cruising along at 3500 with no hesitation and come to an incline the same symptom of power loss is experienced and right after it if I pull off and go from a stop I can shift up at high revs with no hesitation as I work through the gears!

I am pondering the issue before taking action, have thought maybe condenser....any thoughts and suggestions?

Thanks, Malcolm