Which ones? I recall two runs. The second run was the better. Maybe it was the Parts Place? Neither have the factory numbers as I recall.
Tamarz has them on EBay....... https://www.ebay.com/itm/1970-Skyla...ash=item3ac66af80d:g:clIAAOSw3YNXbZAL&vxp=mtr
Tamraz and The Parts Place will have the same part. The guys are related,and pretty close in location to each other. If there is a “better” set,they should have them,compared to Year None and OPGI,who typically get the cheapest low-grade CHIT.
The repros warp up , not terrible but mine did, didn't notice till after I put the exhaust thru the bumper,...