Page one is from Glenn's manual and it covers the Giulietta, Giulia, 2000 and 2600. The second sheet is from the two liter manual for engine and transmission. Since the two liter engine is basically the same block as a 1900 and they can use the same head gaskets (in fact first 435 are 1308 blocks), I believe you can use the same specs on 1900. Jay
Ah. Given that the steel oil pan is deformable, and it usually uses a cork gasket, one does not really use a torque to tighten the bolts. Torque is really a meaningful concept only when tightening a fastener up toward its plastic limit. In the case of a deformable material (such as a wooden propeller) one tightens to a concept called TFAR. This stands for "that feels about right".
I trust you have done some work to straighten the deformed areas of the pan?
I got a pan gasket from AFRA a while ago that was the best I've had. Not cork, but a somewhat squishy material that would accommodate some imperfections in the pan sealing surface. As much as I dislike silicone sealers, this is a good place to use it, I think.