Quadrajet Problem Solving > Dialing in your rebuilt Quadrajet carburetor
how to measure hanger ? And vacuum question...
wcumagic:
Ok, I've read a thread about measuring the hanger from the place it rests to the "holes" or where the secondary rods hang. But, hang tight! Measuring from the top of the hole, center, or bottom of the hole? that can make a reasonable difference!
Second Q - The engine pulls 11 inches in park, and 9 inches of vacuum in D. I'm supposed to base my carb rebuild on the 9 in Drive, correct?
I've got a 73 challenger with a 340 bored .040 over built by Barnes and Reese (Jack Ingram's main engine builder during his championship years). He rebuilt it to 1969 specs with higher compression ratio (shorter sealed power pistons), ported, polished, and shaved the heads (Up the compression a little more). Did the valves. Custom cam. Balanced everything, and built it. It still has the factory intake on it, and we had originally rebuilt the Holley (vintage) that came with the engine and trans that my mopar man pulled out of a 72 dart. I want to remove the spacer and get that (10 mpg) holley off of it. I was REALLY happy with the quadrajet that I rebuilt per cliffs book on my camaro, so I figured I do that for this one too.
i found a great casting 17056259 carb with an APT system on it.
Cliff Ruggles:
Excellent carburetor for what you are doing.
I wouldn't really worry much about hanger height, the stock hanger is fine on that carburetor number, as are the CV metering rods for what you are doing, at least for a starting point.
I hoped you used one of our kits, with the upgraded Viton parts, HP accl pump assembly, and high flow needle/seat assembly.
We also sell a quick release choke pull-off for that carb number, and electric choke conversion.....Cliff
wcumagic:
Thanks for the reply!
but what about the vacuum q?
wcumagic:
And may I ask another stupid question? How are the parts better in your kits? I understand it is probably daft to follow your book to a tee and put in a cheap kit, but for the exceedingly budget minded guy (me), just what different can I expect from yours and a, say, NAPA or OReilly kit?
Just as a side note : I did read the description, and I see it comes with many more custom parts, but of the parts that are similar, what are the differences?
wcumagic:
ok, forget that last question please.
Vacuum?
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