I just converted my 70 cutlass conv, 350, to HEI. Followed the tech pages here to the "t"- works great, but now my heater doesn't work. The fan blows but not heat. Gotta think the problem exists in one of two areas. When reconnecting all my vacuum hoses I came up with two connections that I have no idea where they go. First, the Black, round shaped Valve bolted to the firewall next to the regulator (a/c car) has a hose connection with no hose. Don't know if I removed it with the old air cleaner or if it's lying somewhere on the engine looking for a home. Second, there's a grey valve/vacuum cannister (not sure which) spliced into my heater hose right near the firewall (the hose going into the block not the water pump)-again, got a nipple on the end of it for a hose but can't figure out what goes there. Finally today I found an unconnected line coming from what looks like the top of the transmission (that's where it was hiding). Where goes it???? Obviously I'm learning as I'm bumbling through it so any expertise would be greatly appreciated.
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