Proform 750 DP

sThe single 750 will be a little small for the 440, but you'll probably have stronger performance with the dual accelerator pumps. If you don't mind babysitting the engine for a minute or before it idles down, running without a choke is fine. I oftentimes don't use one, and it does get cold and foul here quite often. Two 750 double pumpers on a tunnel ram is as good as it gets on the street. Popular consensus is that a Weiand Hi-Ram is the best TR intake for street use. With your 28 inch diameter 275/60-15s, I would be looking at a little deeper gear before making any other changes, though. Which gear is going to depend on how far you're going drive it, but I would start with 3.73 as a minimum and be leaning more towards 3.91-4.10 if I didn't plan on any serious distance driving.