Originally Posted by Cal_Cobra
Thanks for the clarification Tom. That would probably explain why it's making another 10+ HP then. Hmmm...the plot thickens

Im still not convinced the increased tank size makes more power. Other differences can effect dyno numbers, and i leave it at that. I guess the only way to tell would be to test both manifolds same car, same dyno, same day, blah, blah, blah and i doubt that will happen for quite some time.