I was wondering what my hp range could be i have a 1980 mazda rx7 12a with 39,000 miles it has all emmisions delete, rb headers, straight pipe 2.5 inch to a 3.5 flowmaster muffler, holley 600 carb, holley intake manifold, msd ignition, and a good tune could i be pushing 150hp??

 

Probably closer to 100hp.

The horsepower limitation on a 1st-gen isn't the carburetor, intake manifold, or exhaust system, it's the fuel pump.

 

What would be a good fuel pump?? Would i be close to 150hp then?? Is it even possible without port work or boost? If it is how could i