wanted 746 valve early design

[70LT1Z28]

does anybody have 746 valve early design nos or used.

[Mr70]

This help?
https://www.ebay.com/itm/1968-69-Camaro-Z28-RS-SS-Corvette-Purple-PCV-Check-Valve-302-V8-Chevy/200819636645?epid=699177342&hash=item2ec1c879a5:g:ltsAAOSwH1VaoY-y&vxp=mtr

[70LT1Z28]

thanks but need original 67/69

[Mr70]

https://www.ebay.com/itm/NOS-CV746C-AC-PVC-VALVE-ORIG-FLAT-TOP-1967-68-69-CORVETTE-CAMARO-427-396-302/113240861176?epid=657265455&hash=item1a5dae69f8:g:eikAAOSwEBRblcZW:sc:USPSPrio rity!60514!US!-1