There are many qualified facilities that can do mechanical service and sell you parts. 

Attention to detail, low overhead and 30+ years of Fiat experience.

Partial List of Services:

Complete engine overhaul or rebuilding

Head rebuilding with or without performance modifications

Distributor rebuilding, both stock and conversion to an electronic Perlux system

Brake caliper rebuilding

Starter, generator & alternator rebuilding

Transmission and differential units (both Spicer and "Pumpkin" style)

Fuel injector service

Carburetor rebuilding