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I wonder how many extra HP is gained with the intake manifold on backwards?
https://www.ebay.com/itm/165326275247?hash=item267e36c2af:g:KcsAAOSwH71iA8Up
https://www.ebay.com/itm/165326275247?hash=item267e36c2af:g:KcsAAOSwH71iA8Up