Thanks for the input Joe.

From my reading and watching guys at the track there are lots of people running stock cranks. I personally (not that I am so experienced) have never seen a cast iron crank in a big block let go. I would expect a main cap or bearing to be a weaker point than the crank. From my understanding a cast crank is a little more forgiving because it flexes a little which is optimum for a car that will be primarily street with a few trips down the track a year. Now yes the rods are from my understanding to be the weakest link; but they have had the beams ground down to reduce potential stress cracks, they have been shot peened and balanced with Pioneer
180, 000 psi bolts. GM has quite a few motors from the factory with stock rods producing 500-600 hp/ TQ figures so I think Im probably safe.

I appretiate your input. I like the Canfield heads, and was basically asking the benefit of oval vs. Rectangular ports for a car that is primarily street with the stats I mentioned in my first few posts. Of course when I talked to the guys at Canfiled they say their heads woud be excellent for my build but of course they are gonna say that. I just want optimum. If Im gonna spend 1400 for Can field heads, and another 200-300 for the CNC'd version...the difference in price for the Brodix RaceRite oval ports are a couple hundred more....If Im gonna spend the $$$$ I want the ones best suited for my build.

Any other opinions are very welcomed! I really do appretiate experience you guys share with your posts...it really helps prevent mistakes and make educated decisions.

Scott