I did a Google search for Banks Powerpack (banks powerpack ford 460 class c). I got a direct hit on a kit that fits my '94 Class C. I called them to ask about the kit - they told me they don't make a kit to fit my Class C. I tell the guy, "I'm looking at the kit on your web page". The guy got irritated with me for telling him I'm looking at a product on his web site that he says doesn't exist. So I guess a Banks Powerpack is not an option. I don't want to spend that kind of money on a '94 model RV anyway.
From what I've read I'm pretty sure I don't want to go back with a stock manifold. I've searched around and found people recommending Doug Thorley Tri-Y headers (part #514Y-FI3). Does anyone have any experience with these headers? Is there another brand you'd recommend?