The person that I bought the car from put Engine Quest Cylinder Heads on it, and said it was a mild port job with 2.02” valves . The 360 magnum engine was freshly rebuilt .030 over. When I bought the car last year.
those heads( if everything else is close) should be capable of easily supporting North of 400 horsepower. Dont think they are an issue moving forward with supporting low 12’s or even high 11’s. Keep chipping away
