X-Head Flow Numbers - What to do
I found two secrets in doing this work. If you can do a good gasket match and blend on the short turns it will make a huge difference. I did not ground the guides down like most recommend. Its a street car and needs the guide length for longevity. I just smoothed them up. I agree on the exhaust that if I could have seen 185 or 190 I would be jumping up and down, but I dont have a flow bench in my garage. The other secret was the shop that did the 4 angle valve job. The fourth angle was blended into the port. I also did not open the port more than 85%of the valve size. More work could be done, but I don't want to spend my life working on heads. I want to finish my car. This just goes to show what you can do if you have the time. Also don't worry to much about the pinch point on the intakes. The gasket match and blend will work very well. :blob:
Thanks for all that post
PS Rumblefish
My shop charged about $50.00 to do Int and Ex for 2 cylinders. I am very confident they all are as close as the two that were done.