[juanbenae]

the earlier versions 78-79 have more value due to the larger intake runners & no need for the 02 sensor. I got $600 for a working 79 system a couple months ago where as the later systems are a dime a dozen IME, but look in the classifieds for a value basis. I found the asking price for my early unit that way and in doing so found the info on the later year models being readily available for significantly less $$. good luck