https://www.napaonline.com/napa/en/p/MPERR192SB/MPERR192SB_0223600857 https://www.napaonline.com/napa/en/p/ECHIC22/ECHIC22_0238732818Above are the parts from NAPA, you may find them at any parts store. I used a 1976 Chevrolet C10 pickup with 250ci engine.
This is the only picture I could find of a stock distributor. As you can see it has a longer wire harness to reach the remote mounted coil. http://www.ebay.com/itm/DISTRIBUTOR-6-250-4-1L-FITS-75-76-CAMARO-6467-/262745815456?fits=Make%3AChevrolet
This shows the end of the harness very clearly,
http://www.ebay.com/itm/1977-Chevrolet-GMC-250-292-4-1-4-8-Brand-NEW-Distributor-Lifetime-Warranty-/391624368051?fits=Make%3AChevrolet
If the e-bay links get deleted, just search for " Chevrolet 250 distributor "
Joe
