Quadrajet Problem Solving > Dialing in your rebuilt Quadrajet carburetor

QJ on my SBC build for my 1986 Toyota Landcruiser

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dougbert:
well I screwed my base plate on carb #1

following the numbers on page 94, in my rote process, I drilled out my mixture holes to .090 up from .055

Instead of just bumping the size by .015, I went to an absolute size increase to .090

I guess I just paid some tuition on my skills and blew the baseplate

429bbf:
.090 is just fine just make sure you don't have coil bind on your spring. you may have to clip a couple of coils off so your idle screws will seat. also isn't that a single mab carb?

dougbert:
had to cut more than a couple of coils, 1/2 the spring. It is a metric screw, the small one.  The tapered section doesn't even touch now.  the springs don't bind, but it bottoms out. 

MAB = Main Air Bleed, ah.  Yeah, has MAB in the horn, projecting out in each venturi

I just spaced it and it was late at night. I checked and double checked, but the "example" was right in front of me and I just followed its .090 value.  Afterward,  I then re-read and saw the .020 increase in the example.  That is the ONLY place in the book where it says how much to increase. Its not even in recipe 1 table.

Ah experience, sometimes hard to get.

thanks

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