[austyn]

filler tube seal +a new float

 

[makis]

ebay? or phone up a specilist. depends on how much you want to spend.

 

[garrick]

www.yearone.com

 

[dagoberto]

You can find almost anything on E-Bay try there

 

[thornton]

http://www.rockauto.com auto parts has 1974 Mustang parts for all three engines offered that year.

 

[banjamino]

Search here or buy a current paper copy at any large book store.