Stock Windsor with heads/cam

[BilLster]

so what your saying is stock bottom end ?

not as much of a problem as choseing which heads cam intake etc you want to go with.

for a little more money you could have forged pistons better rods (truck rods are better than car forcheap people like me have them polished and shot peened ) and the cranck shaft bearings are a area that is money well spent.

But the real restriction is the stock heads cam and intake and you will be doing away with those.