No power in 3rd gear and no top end

[Shorebet]

1990 z32 na. I just did a complete rebuild of my z32 track car bearings rings heads. Did not bore it just built it back to stock for dependability. I've got no top end and 3rd gear up it's just flat. Egr delete and catch can installed, I think the problem is in the catch can routing, giving me a vacuum problem. Any ideas ?

[centralcoaster33]

Do you have two track cars and both have no top end power? Are you responsible for both rebuilds?

An EGR delete has a vacuum re-routing involved I think, so that could be a source of a smaller leak. The catch can routing... I doubt it, but maybe. Seems like a leak would be obvious from a loose hose. I figure these types of leaks would present a problem with idling at a stop more than lack of power, but I don't know. Maybe the vacuum affects your fuel pressure regulator.