As I dont know much about engines, carbs but have gotten good advice from several people....I think "practicality" is important... I learned on my Replica Austin Healey I had that the previous owner put too much of a carb on the 302 in it...we changed it , downsized the carb from a Holley 650 (forget the size we used), got much better performance, was faster , plus got 19 mpg instead of the 12 previous....it had so much carb that it didnt use all of it ,but leaked unused gas into the oil, thinning it out and wearing down the bearings! and as I got my Firebird with a 400, there was an old Holley 650 on it that was in bad shape , only 2 barrels worked...my buddy helping me told me to get another carb...I asked "which one is best for this car"? his reply was "the one you or someone you know is familiar with and likes to work on" so I asked "which one do you prefer to work on"? He said Holley , so that was my choice...
