Problem with lash closing up

[ss3011]

Originally Posted by Mark Yacavone

Russ,
All new parts? I'd be curious about the valves, and where they were made.

Not new parts , same Manley valves that were used last year . I was wondering if they could possibly stretch , but will need to take apart the heads to compare the valves and seats with other cylinders that did not have any lash problems .