[George]

Did any of the gts have hardened valve seats from the factory?The reason I ask is because the owners handbook that came with my 1972 gt says to use unleaded fuel.

 

[George]

I've been running unleded gas in my gt from the time leaded was not around anymore and never had any trouble yet.I was woundering if I should use a lead additive or just not worry about the valves till something goes wrong.I think you answered that for me.thanks

 

[George]

hardened valve seats

So the induction hardened seats are not as good as incerts but better than non hardened seats?