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Here's some of the places I go to learn:
Fuel Injection
Megasquirt is a modern electronic fuel injection controller that can be had for just over $100. Then you just solder it together. Tuning software is freeware and badass.
Ford Big Block 385
Big block Ford nuts galore! Man these guys know their 429s, 460s, 514s, 557s etc. Seriously 385 series.
Scott's gone to great lengths researching the hows and whys of porting Ford 460 heads . Awesome.
Induction and Airflow
This is a page that discusses in length flow in an engine.