Hi everyone,
I've got a 68 firebird w/ a 350 in it. She's got a rebuilt Holley 750 and I was wondering. Whats better for performance? Should I continue to run my PCV valve in the valve covers to the manifold vaccum port on the back of the carb. Or should I use an open element breather cap on the valve cover and cap the manifold vaccum port? I don't have any emissions laws to worry about and I want the best performance I can get.
Thanks,
Brian
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