carb for 69' 340 dart?

DieWilde13 said
I have a 600 4160 series Holley on my 340 and it runs Perfect!
Have 68 Jets in it and the AFR is perfect. Wondering why everybody has a 750 on the 340. Isn´t it too big for a 340?

750 is fine, most would say a 600 is a bit small for a 340, unless your driving style is fairly conservative.