The rule of thumb I learnt was 2-4-6-3
N1=22
EGT=450
N2=60
FF=.3
These numbers are for the Classics and are approximate, except perhaps for N1 which should be 22% (cf flight idle at approx 32).
the EGT will vary considerably depending upon ambient conditions & engine condition, hence you probably wont find the "accurate numbers" written anywhere. NB the NG EGT may be below 400
The "small red line" on the NGs is the EGT limit for start, it also varies with ambient conditions. When it disappears the big red line is applicable.
S&L