This ad is for four custom OEM CIS intake manifold pipes for a 1980 - 1983 Porsche 911 SC with the small port 34 mm cylinder heads. The manifold pipe may very well fit older Porsche year models with the K-jetronic fuel injection like the 1974 - 1977 Porsche 911s because those are 34 mm ID pipes too.
I am not sure what the previous owner was attempting but these obviously have been cut down. On two of the bases there is what appears to be perhaps a custom fuel injector mount. It is a machined aluminum spacer that slips into the stock injector hole. I only have the four pieces.
I am asking $60.00 for the parts plus $18.50 in postage and paypal fees