I'v been looking to get a rebuilt/remanfactured Quadrajet Carb from national Carburetor for my 79Z, and i am wondering what kind i need. In utah it'll be registered as a vintage vehicle, so no emissions for me, there appears to be the rubber lines from the intake for a Hot air choke, or would it just be easier and more simple to get a Electric one and run it to the key'd ignition? I just want to drop it on and bolt it on and go really with some idle screw adjustments. I had one but i took it to be rebuilt to find out it was missing parts and pretty much gone i also plan on taking this on a long road trip this spring and want to have a Qjet for Mpg on highway most the way, is there any difference between the Level 1 and Level 2 Carbs on there website in Mpg? it says for used with intake/headers that i do have.