you don't need a built head to make 300-375...... i just got some info from jj the other night myself that i didnt realize, and im sure all these experts already knew.
take this sol for example.
http://forums.nwp4life.com/zerothread?id=15821 .......... AND this coupe........ http://hondamarketplace.com/showthread.php?t=2888099
it's making 360whp on c16 and the coupe was making 373whp and 315wtq. if i were in your position and i had the same goals, i would keep the head stock and run hondata s300. If im not mistaken you can run dual tables for high/low octane. meaning you can run your pump gas everyday and run a switch and change to race fuel for the track. I'm sure you will make around 325-375whp on your stock head and that will save you OVER $1,000 from not running the bisi parts or having to port the head.
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