I have also heard good things about Danfast but there is another company that I might bring my Chevelle to when I put exhaust on that and the company is called Pro-Max. They are located down in Tacoma but I forgot who I heard about it from so I do not know much about them. They have a website to check out,
www.pro-max.com, they look professional and I would trust them with my old muscle. Good luck.
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'71 C-10
'70 Chevelle SS