MaineShark
Well-known member
- Joined
- Sep 21, 2002
- Messages
- 1,326
- Location
- Rockingham County, NH
- Corvette
- 1979 L82, 1987 Buick Grand National
I know there were some changes in the Q-Jet, over the years, due to emissions nonsense, as well as reliability.
For starters, I know that they changed to a smaller float after a certain point (good change - smaller float means more fuel capacity in the bowl)
I know that they also restricted the diameter of either the primaries or secondaries, as well as certain carbs having limited opening angles on the secondaries.
I want to get a carb from a junkyard, do some research on building Q-Jets for perfromance, and then rebuild it to my own specs. So, I'd like to figure out which "core" is going to be best. I'd like to get one that is after the float-size change, but avoid anything that will be restrictive (particularly if the restriction is not easily changed, like the diameter of the throat, or such).
Any ideas what years/models I should ask for at the junkyard?
Joe
For starters, I know that they changed to a smaller float after a certain point (good change - smaller float means more fuel capacity in the bowl)
I know that they also restricted the diameter of either the primaries or secondaries, as well as certain carbs having limited opening angles on the secondaries.
I want to get a carb from a junkyard, do some research on building Q-Jets for perfromance, and then rebuild it to my own specs. So, I'd like to figure out which "core" is going to be best. I'd like to get one that is after the float-size change, but avoid anything that will be restrictive (particularly if the restriction is not easily changed, like the diameter of the throat, or such).
Any ideas what years/models I should ask for at the junkyard?
Joe