Re: 67 camaro rad. recovery tank
I thought in 1967 you used a Coors beer can if you lived on the east coast and a Budweiser can if you lived on the west coast. NHRA regs required a catch can for over flow to keep the track from getting wet.
No coolant recovery can was produced before 1972 (when Federal EPA regulations required it). I don't think Chevy offer them before 1974; from memory. A 1974 Nova coolant recovery can should fit in your Camaro, but you need to change the cap to a recovery system cap as yours only flows one way; it won't allow recovery of overflow fluid.