Hello, I built a Pontiac 455 which is mostly going to be used on the street and occasionally will be run on the strip. I was told by a Pontiac drag racer to add crankcase evac tube / breather kit. He said it would be worth up to 25 HP gain. I was recently told by another that one should not run that system on a street car because it sucks all the oil out. I'm not sure what to do. Any help would be great. Visit my web site to see the build of my 64 Tempest at
http://www.hotrodtempest.com
Mike