I will be likely putting a turbo on an old 200cid Ford six. I noticed a few log type custom manifolds. They seem to make no attempt to make equal port lenghts to match each cylinder's flow characteristics. Would this be worth the trouble? Any analysis on potential losses/gains?

Thanks

 

Lol, you hit the nail on the head buddy. They are just a simple design to mount a turbo to a head. No frills. They work just fine though. No fancy stuff. They aren't the most efficient design, but they work.
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an equal length mani would make a difference, but not so much of one at low boost levels and low power output, i wouldn't worry about it.