67 326 motor

[owenzamecnik]

i am re building a 66 326 motor to put in my 67 lemans but i wanted to know if there was any way to run it on unleaded gas since leaded gas isnt an option anywere were i live. would i hav to make changes to the motor and would it change the hoarse power at all? im only 15 trying to restore a whole car so i need quite a bit of help. and if not, how much is the led additive for the gas? thanks

 

[melsg5]

I assume you are sending the heads out for valve work? The machine shop has to install hardened seats. Thats all you have to do. Good luck.