Can anyone explain where the fusible link is off the main POS battery cable? I read in the tech manuals that it should be along the main wiring bundle going across the front end, in front of the radiator. If you can't find it, should you put one right off the main battery terminal prior to it going to the first junction connector (behind right headlight). Don't really want to fry this new electrical setup I just installed.

If memory serves me..You should have a 2 wire positive batttery cable with a fusable link..A 4 gauge main, and a smaller 14-16 gauge coming from battery positive.

I believe there is also another near the voltage regulator.

I will check tomorrow..Maybe check the wiring diagram in your Chilton or Haynes 67-79 Firebird manual..Great book to own!

There is supposed to be a 14 gauge fusible link off the pos terminal which you can purchase already intalled on the cable or add one to existing pos terminal. This should run a short distance to a junction block which bolts to inside of the radiator support just along side of the battery. The block has one stud which connects the fusible link to a 10 gauge wire which runs to your main splice on drivers side of car, just below the horn relay.

I know this drones on further than you probably needed but maybe it will help someone else!

Thats exactly what I remembered from my old 68 camaro many years ago. The new POS cable has the smaller cable but no fused link. I am going to put one right off that line prior to it reaching that terminal you spoke of. I did NOT do that with the camaro, and this caused a very smokey, stinky, embarrassing moment at a four-way stop. The entire main POS wire melted down and all I could do was watch it go around. The fusible link should be one or two gages thinner than the line you are protecting, correct?

Gauge should not matter..Just dont put a 14 ga. fusable link on a 2 or 0 ga. line.

If yer running 14 primary wire, a 14 ga. link is fine. just dont go below 16 or higher than 12. too thin..will keep closing circuit... too thick..will cause protected unit to possibly malfunction.

I would go smaller ga., not bigger. Same size is fine as the link is protecting the circuit.