Pushrod problem with Speedmaster heads

Problem I've got is that the pushrods are contacting the head at the bottom of the pushrod tunnel above the lifters. Anyone else encountered this? If not, you might want to check your pushrods for contact/rubbing in this area.

Problem is that I don't know how to correct it...any ideas?

360 LA, hydraulic roller cam & lifters, 273 adj. rockers, Smith Bros. pushrods. No milling of either block or head deck.