Would 1967 Pontiac Firebird run on leaded or unleaded fuel?

  • Thread starter Thread starter JLB
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JLB

If it were to run on leaded fuel could I use unleaded or some type of octane booster?
 
back then they usually ran on leaded gas. if it,s not made to run on unleaded gas you could burn the valve up if you use it.
 
you can run it on unleaded without any problem unless you intend to constantly run the engine at high RPMs, such as racing. Since you dont say which engine the car has it is difficult to recommend which octane unleaded you can use
 
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