Flip job!
i feel any 70-76 duster or dart sport/demon , 6 cylinder car , in great running condition, should be topping out at 4k. i feel 6 cylinder 340 clone cars are overpriced at 15k. just because someone put a bunch of 340 stuff on it doesnt make it valuable. original 340 correctly restored cars should legitimately bring 15-20k. builder 340 cars with all the parts needing to be put together should bring 6-8k given they are 95% complete. i am no guru by any means, but i do watch what they are generally going for.