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Old 11-14-2011, 10:05 AM
speedbump speedbump is offline
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You won't get much out of the 2.190's and 1.88's unless you work the short side radius pretty well. I did a build almost exactly as described above but used KB forged pistons and a Comp BMT cam. I took a head to a flow bench guy with a stock valve/port, a 2.90 done almost exactly as above with bowl hog/Serdi and no port work and one with my completed port. I'm not a pro in the port business but common sense goes a long way.......towards carpel/tunnel if you do it . Without digging out the sheet, the stock port was around 250, with valve added-270, with port work slightly over 300 and I'm not even going to the "good port bad port thing." What has been said is true. You can get some decent aluminum like Pro Comp (probably a dirty word here) cheaper than doing your heads unless you can do lots yourself. If I had to charge someone for what I did, I would try to talk them out of it. Guide and bowl hog work is time consuming and the machinist has to pay for the machine and his time. JMO, but if you want to stay with good stuff, the AFR 310's with CNC port would be killer for a fair price. (that's after carpel/tunnel surgery)
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