[Ram Air IV Jack]

Originally Posted by padgett

And the most common problem with QJs is people backing off the secondary opening spring and experiencing a massive bog when they just flop open.

Yup, played around with the air valve a lot many years ago.

[JSchmitz]

Originally Posted by padgett

And the most common problem with QJs is people backing off the secondary opening spring and experiencing a massive bog when they just flop open.

A large part of the secondary opening rate is controlled by the orifice in the choke pull-off. The air valve spring is more of a fine tuning adjustment.

[dataway]

I had a holley carb on my GTO for a while with vacuum secondaries ... I don't how their system worked but it had about the smoothest, and yet most aggressive transition I ever felt, absolutely linear, very easy to control with the pedal.

[Carousel72TRed]

Originally Posted by Ponticat68

Hello,

I am looking for this carb for my 350HO, let me know if it is available.

Just letting you know don't hold your breath waiting for me to sell it but if I do I will keep you in mind. There is one other individual that is interested in it and he'll have first dibs on it but I may keep it and put it on my 69 GTO that currently has a Holley 750 on it. You can try info@quadrajetpower.com and they refurbish and sell various Quadrajet carbs but I looked up mine (7029268) on their site and they want $800-$1000 for one. Glad to see you and some other guys with their 350HO 68 Firebirds out there.

Carousel72TRed