Originally Posted by willwren
Holley is like Nike. Cooler name, but is it really any better than Adidas?
I'm partial to them, only because they are still manufactured and I feel they are more flexible than the Q-jet. That said, I agree.... if you have a Q-jet in hand and it works reasonably well, there'* no compelling reason to buy a new Holley and start tuning it from scratch. Work with what you have.
Should anyone feel the need to switch, change intake manifolds to the squarebore flange at the same time... putting a Holley on the Q-Jet spreadbore pattern intake manifold is a recipie for heartache. (Holley'* 4165 Q-Jet replacement carb is worse than both the Q-Jet and 4150/4160 carbs combined...as are most of the adapter flanges...always use the right manifold for the right carb.... Spreadbores are for Q-Jets, Squarebores are for Holleys)