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  1. What is a thermactor and should I remove it?

    Classic Tech
    Hello. I'm in the process of resto-modding my 1965 Mustang coupe, and I think it may have a thermactor but I'm not sure. So I have some questions. 1. What is a thermactor? 2. How do I tell if I have one? 3. Are there any benefits to removing it? Does it effect horsepower? Here are 2 pictures...
  2. 1966 Mustang 200ci vacuum advance replacement

    Classic Tech
    Hi guys, I have a 200ci that had the thermactor emissions. So to make it short and sweet. Where can i find a replacement vacuum advance for a thermactor distributior? Here is a thermactor distributior from MustangsUnlimited. Mustangs Unlimited - The Premier Source for Mustang, Shelby and...
  3. installing headers, h pipe no cats. QUESTION!

    5.0L Tech
    I am installing BBK shorty headers and h pipe with no cats. But the pipes i got have the hole for the smog pump wElded. so what will happen if i dont hook it up? I plan to eventualy delete the smog but for now i just want to get my pipes on there. can i just unhook the smog altogether but leave...
  4. GT40 (not P) head smog issue.

    5.0L Tech
    On the stock E7 heads there is a hole on the back of one of them with a line going from it to the smog pump. I was told this was... something with the word termactor in it.... anyway, the hole is not there on my GT40 heads. It seems very plausible that this thing is necesarry to pass smog...
  5. 1987 mustang exhaust/thermactor issue

    5.0L Tech
    i just bought a new pypes exhaust with new headers, offroad x pipe, and cat back. First off does anyone run pypes headers? i could not get a bolt on the headers so i could not install them. Does anyone know of a solution. Next, i installed everything else and cranked it and it runs terrible! it...