[FAKKY]

Think I'll just go with teh single fan like you suggest - if its too noisy ..... deal with it then.

On the harness ...... the purple wire that goes to the smaller post on the starter. Seems like in a 4 wire hookup people it just goes directly to the ignition switch (key switch).

So literally it just go the switch in the drivers key/ign on ? Seems large and I thought the NSS was somehow involved here (to prevent starting etc ).
Ok read some more (general not LS specific) ..... so this should go through a relay.

30 to battery 12v
85 to chassis ground
87 - your purple wire from starter (in harness)
86 - your keyed ignition.


BUt is this tied in somewhere for NSS or do you have to add that somewhere ....