Used Diamond W2 Aluminum Heads Yay or Nay?

No flow numbers but I'd be having them pressure tested and flowed before purchasing. Sounds like the guy is willing to drop them off at the place i suggested as long as I'm paying for the testing.

The intake is a ported matched Holley strip dominator and the headers are TTI ceramic coated. Evidently it was all in a 10 second 340 Duster.

He did send me a receipt for pressure testing, a valve job, and welding repair on these that he just had done. Evidently they had to fix a spot in 2 combustion chambers. Also he said there are some tiny cracks from some of the intake valves to the spark plug holes but the shop that pressure tested them said they were ok. Which is one more reason why I want the shop I talked to to look at them. Supposedly those cracks are common?