06-21-2011, 07:43 AM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Not Ranked
For a couple of reasons...
The first one is that I've always heard that running an engine with no headers/manifolds could risk burning a valve. I've never tried it so I don't have any data to back that up, but I wouldn't wanna risk it.
The second reason is that without something to help scavenge the exhaust, it may run really rough or really struggle to run at all.
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