383 exhaust manifolds

Besides the guys who are lucky enough to have those stock 2863900 / 2846729 manifolds, what are you using that worked well? I have 3751074 / 3751068 manifolds and asking for your help and opinions if there is something that works better. I have a 73 Swinger, auto trans, manual brakes. Also, to anyone who has installed Hedman 78030 headers, how bad are they to install? As you see I'm in the middle on deciding on my exhaust. Can't afford the TTI's and such. Thanks a bunch, Rog