yeah but the i personally would save up some more and do H/C/I(heads,cam,intake) all at the same time afr165 are great along with the steeda cam and a good intake to opick up is a used 96-01 v8 explorer intake it flows about the same as a gt40/cobra intake for about half the cost of one.
i picked up an entire explorer motor for 200$ the explorer also have gt40 cast iron heads and as stated above the intake and add a good cam like the f303 or b303 cam and roller rockers you can easily obtain 300 rear wheel horsepower and that will be nothing to sneeze at