Ford Repair: ENGINE, e303 cam, roller rockers

Question
I HAVE A 95 MUSTANG AND I RACE IT ONCE IN A WHILE BUT ITS NOT FAST ENOUGH YET, I TURN LOW 13 SEC. MY QUESTION IS CAN I GO TO A F303 CAM IF I HAVE 1.72 ROLLER ROCKERS WITH OUT THE VALVES HITTING THE PISTONS.I NOW RUN A E303 CAM WITH THE ROCKERS ABOVE WITH NO PROBLEMS.  HOPE YOU CAN ANSWER THIS.


                THANKS JIM

Answer
Jim-

  An F303 might fit, but it will be cutting it REALLY close with 1.72 rockers.  I'd have the pistons clayed before running the engine to make sure you'll have enough clearence.  You may have to have the pistons flycut before running the cam to avoid any interference.  Hope this helps.

Steve