what do I do now

just received word from the machine shop that the 340 X heads I sent down to be gone through isn't worth messin with. Have the 268 cam ready to go in and now no heads. what can be done with the 360 heads that are on there to make a difference. how much difference would it make anyway. would I be just as good to buy a descent set from Summit. just looking for the best bang for the buck. Hate to invest in another used set and find they are no good. these came with a bunch of engine parts I bought a long time ago. any suggestions.