Here are the numbers I get from the manual for the 1st and 2nd gen. Toros:

1966: This is really a wierd one, since the 425 only has listings for the
manual trans and the Jetaway. There is no separate Toronado listing, as in
later years. Here's what they give:

400&425 standard:       7026250 (w/o A.I.R.)
                        7036250 (A.I.R.)

400 Jetaway:            7026256 (w/o A.I.R.)

1966 Service Carburetors (a separate page, dated from 1972. You'll note the
carbs have 1971 numbers on them):

400&425 Standard:       7041312
400&425 Jetaway:        7041310

1967:

425 Toronado:           7027131 (w/o A.I.R.)
                        7027130 (A.I.R.)
                        7027132 (C.C.C.)

1968:

455 Toronado:           7028252

1969:

455 Toronado:           7029252

1970:

455 Toronado:           7040252

1971:

455 Toronado:           7041252
455 Toronado:           17054934 (service carb)

1972:

455 Toronado:           7042252
455 Toronado:           17054934 (service carb)

1973:

455 Toronado:           7043252
455 Toronado:           17054934 (service carb)

1974:

455 Toronado (Fed):     7043252 (same as '73)
455 Toronado (CA):      7044557
455 Toronado (altitude):7044282
455 Toronado (Fed):     17054934 (service carb)
455 Toronado (CA):      17054935 (service carb)


1975:
455 Toronado (Fed):     7045185
455 Toronado (CA):      7045485
455 Toronado:           17054941 (service carb)

1976:

455 Toronado (Fed):     17056252
455 Toronado (CA):      17056552
455 Toronado:           17054941 (service carb)

1977:

350 Toronado (Fed):     17057252
403 Toronado (CA):      17057552
403 Toronado (altitude):17057257
403 Toronado (Fed/late):17057259
403 Toronado (CA/late): 17057555

1978:

403 Toronado (Fed):     17058259
403 Toronado (CA):      17058555
403 Toronado (altitude):17058257

Also, since the non-electric carbs end in 1979, here is the first year of
the 3rd-gen Toro:

1979:

350 Toronado (Fed):     17059259
350 Toronado (CA):      17059553
350 Toronado (altitude):17059258