Maldonado,
Thank you for the compliments - I am humbled. I am far from the king of these engines, just a racer with lots of experience. First you should decide on whether to use the production U-flow head or a hybrid crossflow cylinder head. You can get over 600 HP on 114 Racing gas with the crossflow head, or about 400 HP with the production U flow head and still run water through it. I used the U-flow head to start off because it costs about three times as much to build a crossflow head. The bare crossflow head in the Ford Motorsports catalog will cost about $7000 - $9000 US. By the time you add custom fuel injection, special pistons, headers, etc. that hybrid head package will easily run $20,000 US. That is why I recommend the production head.
If you e-mail me your address I will send you a buildup article from SuperFord Magazine November 1985. Most of the info still applies and it would take a week of e-mails to convey all this info.
Also go to
www.fordsix.com and search the 240 - 300 files.
Welcome to the club. Get ready to go FAST!