A basic rebuild on your engine will cost you about $3500. Of course you need to do all of the installation, removal and engine assembly and disassembly yourself.
The iron 4v heads will flow right at 300 cfm with a basic 3 angle valve job. That's about 25 to 30 cfm better then the current crop of "HIGH PERFORMANCE" after market aluminum Windsor heads will flow, and I will point out better then the 427 Ford heads as well.
Add a modern camshaft, flat top pistons to go with either the open or closed chamber heads.
Then a Holley 700cfm carb and pick a manifold. Virtually ANY manifold.
You don't even need to rebalance the assembly.
Then go out in the yard and find a nice big stick. Take the stick and shake it at the engine.
Bam! 450hp! Simple as can be. If you can't find a stick, I'll lend you mine.
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