I did that on my drag race small block. headers only- no exhaust- tailpipe and the tubes entered right at the end of the collector. All vacume there and no back pressure. They used a one way valve that I think was a Mopar part. No oil issues in that scenerio.......................MO On Jan 9, 9:04 pm, Dodger7...@xxxxxxx wrote: > not sure manifolds would work, I know a lot the racers use siphon tubes on > the headers to pull fumes out of crankcase > > In a message dated 1/9/2013 7:32:29 P.M. Central Standard Time, > > mic...@xxxxxxxxxxxxxxx writes: > > I am using exhaust manifolds.............MO -- -- -- Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html. -- You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group. http://groups.google.com/group/1962to1965mopars?hl=en.