I'm with you TooMany. I just picked up a complete running 305 with A/C, Power Steering pump, Alternator, Starter, and Cruise Control for $100!
You can't buy the brackets for a crate motor for $100. They are cheap because they are overlooked.
When you look at torque (not HP) numbers they are pretty close to the 350. Dollar for dollar they are ahead.
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Guy
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'67 Chevy C-10 305/700R4