1971 Javelin production: 7,105
1971 Javelin SST production: 17,707
1971 Javelin AMX production: 2,054

Engine specs and options:
http://www.amx-perience.com/1971JavAMX.htm

1971 Engine codes:
E = 232
A = 258
H = 304 2 bbl
N = 360 2 bbl
P = 360 4 bbl
Z = 401 4 bbl

(Actually the X = 1968-70 390 4 bbl and Y = 1970 Machine)

Color: Wild Plum = D9

It may be easiest if you post (or PM) VIN and door tag info for a complete breakdown of codes.