I'm still trying to locate all of them also. Here are the ones I have been able to fill so far.
Engine bay (4)
Cowl drain holes (2)
Seat bolt hole plugs (8)
Transmission support brace (2) I think
Rear shocks (2)
Lower quarter panel trunk drains (2)
74' 302, BG 525 Road Demon, AFR 185 Heads, Headman Elite Headers, HEI Distributor, C4, 3.55 Posi, 17x8 TT IIs, Toyo Proxes 4 225/45/17 Front, 235/45/17 Rear, Painless Direct fit, JME w/Autometer Gauges