Re: need help with 258 power
mine idles perfectly![img]/wwwthreads_images/icons/smile.gif[/img]
all stock under hood with all the smog goodies. didn't run too good when i got it but after tune-up, egr valve, cto valve, heat sensor, and new rebuilt carter carb-----
don't know much you can do to gain horsepower with bolt-on goodies.
maybe max out with an edlebrock manifold and holly carb but will it pass smog in your state?
i get 20 mpg. 13 doesn't sound right.
how about check timing, new plugs and set carb for better milage?