Ditto what Tech said - I love Quadrajets and have had really good performance with them - Interestingly enough, years ago I ran a Weber DCOE's on an Opel that had and found them to be great units as well.

There's really only two sizes of Quadrajets. The smaller one flows 730-750cfm and the larger is an 800cfm unit. I'd bet you have the smaller one and it's the correct one for your applicaiton. Truck models typically had a bit different linkage as many times they are standard shift and don't require the attachment for the kickdown cable. The 800 is not real easy to find anymore and it was used for big displacement engines.

Regards,
Glenn