I would do this modification with or without a Turbo when keeping the stock K member, especially if your taking it out of the car during your build. The Idler Arm Conversion alone is worth doing because of the cost of the 67 Idler Arm " 1 Year Only". Remember this is a 67, 6 Cylinder K Frame.
Like stated earlier Firm Feel does the same modification for $450.00 + Shipping both ways of your K frame. This does not include the Idler Arm Conversion, Tow Hook or the K Frame itself, Just Labor.. So your talking at least $650.00 or so in most cases.
