Found my dads original 1971 duster!

So a cylinder head cracked on the dyno and they charged you extra to put another cylinder head on the engine? Is that what happened?
So a cylinder head cracked on the dyno and they charged you extra to put another cylinder head on the engine? Is that what happened?
he said they
No, They told him that it had a blockage
He sent my “clogged” block home with me too