1971 Blazer Rebuild - Sending units
 

I have a 71 blazer that I recently installed a 355 from blueprint (BP3550CTC1).

Does anyone know where the oil pressure sending unit goes and what part #/model year? I think this is a 94 block from blue print, but the wiring and truck is a 71.

Same question for the tempature sending unit. It has an edelbrock intake/thermostat housing.

Pictures really help if anyone has any.