Hello cnmsales,
Regarding the fuel tank filler tube and vent tube rubber hoses that Mike spoke about above, below is an Ebay link for an excellent Ebay Mopar reproduction parts seller that I've done business with several times over the years that sell the hose kits that are used on all 1966 and 1967 Coronet models with the exception of the station wagon models and this would include your 1967 Coronet 440 4 door. They are a very high quality product.
One bit of advice that I would mention to you if you do replace these rubber hoses, is to NOT use the factory style hose clamps that they supply in the these hose kits. Instead, purchase a high quality set of stainless steel adjustable screw style hose clamps, as you'll be much happier using a better designed hose clamp for this application.
Ebay link: http://www.ebay.com/itm/311484838385?_tr...EBIDX%3AIT
Regarding the correct Coronet style fuel tank and other related parts that should be changed at the same time for your car, below is an Ebay link to a 1966-1967 fuel tank kit that includes most all of the parts that you would need to install a new correct style fuel tank with the exception of the specialized "J" bolt that is only used on the 1966 and 1967 Coronet and other B-Body models those two model years. This "J" bolt is used to mount the fuel tank mounting strap to the cars frame, so you will need to reuse the "J" bolt that is hopefully still in place on your car, as these "J" bolts are not being reproduced by anyone at this time and the "J" bolts being sold for the 1968 and later models will
NOT interchange on the 1966 and 1967 cars! This fuel tank kit also does not include the fuel tank filler tube and vent tube hoses you'll need, so you will still need to purchase one of the hose kits shown above as well.
A picture of the correct 1966 and 1967 B-Body fuel tank mounting strap "J" bolt.
The seller on this Ebay auction for the fuel tank kit that I've posted below is a very good Mopar retailer and is the same company that I purchased a 3/8" sized fuel tank sending unit from last year for my 440 big block powered 1966 Coronet 500 and I was very happy with their customer service and parts quality.
By the way, the internal fuel tank mounted fuel sending unit is sold in several different sizes. the smaller 5/16" size that was used by Chrysler on most all 1966 and 1967 non high performance models such as your 1967 Coronet 440 4 door, a larger 3/8" size that was installed at the factory on most all high performance models and a larger 1/2" size that wasn't used on any models from the factory, but is used by many folks these days for higher performance street and drag race cars. The fuel tank kit link below is for a correct style fuel tank and a 5/16" sized fuel sending unit which will be a direct replacement for your cars original factory installed fuel tank and sending unit.
Ebay link: http://www.ebay.com/itm/Mopar-Zinc-Fuel-...SwPcVVrvy8
I hope this information is helpful.
Richard