Well, anything you find will be at least 20 yrs old since the last year was 89 for them..Do you need low impedance injectors? You might be better off just buying an aftermarket set on something, at least they're new. Issue with the brown tops is they're half plastic and half steel, so they rust at the joint and leak. If you need low impedance, there are 36's available in low impedance...Let me know...I don't think I have any worth a shit to give you though.