I’ve tinkered with a number of carbs. I found the Qjet works very well with our engines. I could never get a holley configured properly. They are good carbs but they require more knowledge to configure them. After market eltelbrock carbs are common on Pontiac but you may have trouble setting up the choke. The proper OEM QJet carb might be your best less cost solution in the long run.
Engine Test Stand Playlist: https://www.youtube.com/playlist?list=PLwoxyUwptUcdqEb-o2ArqyiUaHW0G_C88 restoring my 1968 Firebird 400 HO convertible (Firedawg) 1965 Pontiac Catalina Safari Wagon 389 TriPower (Catwagon) 1999 JD AWS LX Lawn tractor 17hp (my daily driver) 2006 Sequoia 2017 Murano (wife's car) 202? Electric car 203? 68 Firebird /w electric engine 2007 Bayliner 175 runabout /w 3.0L Mercuiser__________________________________________________________
