My project, a 1983 K5 Blazer, 350 bottom, 305 top, flat top pistons, RV cam. I want to replace the quadrajet with a 600 CFM Edelbrock carb and manifold. I think this would be about right for this engine in my area of west Texas at about 1700 elev. My question, where can I get the best deal on this carb? Thanks, any comments appreciated. AL