I ran a stock thermoquad for years on a stock untouched, unopened smogger 440. A couple of friends of mine who drive old small block trucks were always mad at me for how great my car ran/drove and what great cold start and driveability manners mine had when their jalopies would be lucky to start on a cool day. Ran the same carb when I did some mods like heads, cam, headers, etc and with some tuning it still drove very nice on the street. My truck friends gave up and went to fuel injected models.