HP 340 exhaust manifolds

Hello everyone. I'm looking for a pair of decent exhaust manifolds that would be correct for a 70 340 Cuda. I know it's not an A-body, but it used to be! I'm not too concerned about the heat riser but I would like them to be crack free without any problems. I can blast them to clean them up for use so they don't have to be cleaned. Any help would be great. If possible email me some pics and price. Thanks.

Ken
Edison, NJ 08820
[email protected]