64 DART 4 way flasher wiring

I checked parts voice with the correct # for 64 and the vendor wants 350.

Pfft. Delusional!

I do have another 64 parts car maybe I could take the wire ends off it and try to figure how to wire it onto the wiring I bought

Gonna be ugly. Just buy new terminals (Delphi 297-3915). You can use the plastic housings from the '64.

Dosent a flasher have to be installed in there somewhere.

Yup. Probably piggybacks on the switch.

And I wonder if 64 65 and maybe 66 take the same wiring connectors

Yes.