I recall that the engines were noticeably canted down. Whether it is the reason for some of the Viscounts slightly stranger handling characteristics I am not sure but at top of descent it was normal practice to disconnect the autopilot before 'fuel trimming' the engines back as the autopilot could not cope with the subsequent pitch up with power reduction. This characteristic also seemed present in the flare when closing the thrust levers also gave a small pitch up (as did selecting 100% flap in the flare).