Ridetech Upper Control Arm/Ball Joint Problem

[piratebaseball]

Hey guys,
Helping a friend put a ridetech coilover suspension kit on his first gen camaro. He bought the kit complete from ridetech including the ball joints. Problem is the ball joint holes do not match the holes on the Ridetech upper control arm. You can get 2 of the bolts in, but the other two are off enough that they won't go in. What should I tell him to do? Send the stuff back to ridetech and wait another 8 weeks to hopefully get parts that fit and bolt together or just drill the other two holes out and bolt it together? The other two holes aren't off by much, just half a hole. I can post pics if anybody needs to see. Thanks guy!