A general question about heads!
 

This is probably a real stupid question, but is there a difference between carberated and fuel injected heads? if so what is it? In my mind i never thought there was but i'm not 100%.

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90 LX 5.0 ,bored 302, MSD 6AL, Twisted Wedge TrickFlo HDs, World class T5, BBK fender cold air induct., 70mm TB,Edelbrock performer Intake, aluminum Drve shaft, 3.55 Gears, Long Tube Headers to Flowmasters.