Yea,I can see an exploded stock T5 in my future:happyhappMy friend and I just built a 331 stroker for his mustang. we went with TFS High port alluminum heads and an x303 cam with DSS forged pro kit rotating assembly. I tell you what, it has some power. It ran a 13.2 spinning through third on street tires and a t5. we just put a c6 in because the car went through 3 t5's in two months. We even toasted a built ford racing one. The track here opens in 3 weeks so we will see what the car does with a c6 and drag radials. I got to say the 331 raps up fast and has great power throughout the rpm range.