Edelbrock Carb adapter?

[rich weyand]

You'll get better mileage with a Qjet than either a Holley or Edelbrock, and I think in the adjacent thread he says mileage is one goal.

But you get better mileage and performance from any of these carbs properly tuned than you will from any of them poorly tuned.

I would spend that money instead on the NGK A/F ratio meter ($250 from amazon) and use it to properly tune the carb he's got.

[Irish_Alley]

rich would that be the only type of meter you would recommend?

[rich weyand]

The NGK is the only one I've used.  It's relatively cheap, and it has the really nice NGK five-lead, wide-range O2 detector. 

Five leads plus chassis ground is three circuits: heater circuit, temp sensor circuit, and O2 detector circuit.

[jpatters13]

I called Edelbrock and they confirmed that with the 305 and a stock setup, the engine calls for a 500 cfm carb.  I chose to order a rebuild kit and take a shot at going through the Quadrajet first.  If that works it will produce the most gas mileage.

[rich weyand]

I think that's your best choice.  Lots of people on here with knowledge of the Qjet internals, too, so shout if you got questions once you get into it.

[Captkaos]

If Mileage is you goal Quadrajet is your best bet.  They will preform just as well as the others if properly setup also.

[Irish_Alley]

now we're thinking and its cheaper to rebuild a qjet then buy a new holley

[rich weyand]

And with the money you save you can buy the A/FR meter, and get it dialed in!  I'm a big fan of A/FR meters.  :-)

[jpatters13]

Okay, I really need some advice. I ordered the Rochester book by Doug Roe and it doesn't have step by step instructions on rebuilding the carb. I bought the recommended rebuild kit and a new float. The truck finally quit running today and isn't getting any fuel now.  To be honest, I am scared to deat to try to rebuild the thing myself because I am clueless about the inner workings and all the thousands of adjustments.  I am stuck and need some good advice on next steps.  Should I just try to find a carb mechanic here in Tuscaloosa?  Should I attempt the rebuild myself having never done it before?  Should I just pony up the cash for a rebuilt carb? HELP PLEASE!!!

[Captkaos]

They are pretty easy to rebuild.  here is  pretty good video.
http://www.powerblocktv.com/episodes/MC2009-18/quadrajet-rebuild

If your intimidated I have a buddy that may have time to rebuild it for a fee.  he is in Rock Creek.  How long can you have it down?

[jpatters13]

Thanks. I need to have it back on the road ASAP. It is a daily driver for my daughter. Any idea what the fee would be? I have the rebuild kit and float already.

[Captkaos]

Wow cool daily driver!  Let me call him.

[jpatters13]

Thanks. Yeah, she is a junior in HS and the truck seems to be the subject of many conversations when they see her pull up in it. She is a country girl at heart.

[Captkaos]

That is awesome.  I called him, he said he is going to be out of town starting tomorrow for at least a week.

[jpatters13]

Thanks for checking. I think I am about to just order an Edelbrock 500 CFM carb from Jegs and be done with it. I have to get it back on the road quickly.  Any idea what the difference is between the Performer series and the Thunder series? Both seem to have the same size bore and jets.

Performer - http://www.jegs.com/i/Edelbrock/350/9903/10002/-1
Thunder - http://www.jegs.com/i/Edelbrock/350/18019/10002/-1