Sounds like you would have been better off getting a 380hp crate motor! They ran mid 11's in light a bodies. That's a fact that is well documented. Alot less cam, converter and head and roughly same performance. I still find it mind boggling that the factory give everyone the recipe but no one wants to cook it.
318willrun has documented a 318 duster in your neighborhood of et. So better refine your combo
