Mopar 2 bbl jets

[Paul Precht]

Buy a set of jet drills and see what you have now, if you're running open headers you'll be going up at least .010" from stock.

[R Hastings]

If you are talking BBD 2 brl, use regular carter/edelbrock afb jets. They are direct replacements. Quadrajetparts.com has jets from .070" and up.

[dmir55]

Use a 1/4 32 NEF tap to 'fix' the threads for the jets. If you don't have much room under the jet, use a bottoming tap. Or you can grind the end of the tap flat. Than you can use Holley jets. I have done this on several carbs and haven't had problems. If you have metering rods just leave then out. Good luck and happy motoring.

[Bruce Fulper]

Don't forget the fun part. Deburring the raised metal from the hole you drill.

[dmir55]

Originally Posted by dmir55

Use a 1/4 32 NEF tap to 'fix' the threads for the jets. If you don't have much room under the jet, use a bottoming tap. Or you can grind the end of the tap flat. Than you can use Holley jets. I have done this on several carbs and haven't had problems. If you have metering rods just leave then out. Good luck and happy motoring.

I would like to add that, in my opinion, it is not a good idea to drill jet. The bit will leave strange marks in the bore. And how will you drill all the jets the same. Maybe if you used a fixture and honed the jets it might work.

[FED 387]

Unless you are or have access to a competent machinist and equipment trying to do it yourself you will end up with a half assed job. We tried to do jets for carbs and pills for injection and they were never as good as the stuff u get from the manufacturers. Might work might not work worth a try. Fed 387

[Sam Capizzi Jr]

On the early vacuum carter bbd (68-73) there isn't a source for different jet sizes. At least nothing I've found online. I built a fixture and use a drill press.. It's not a perfect system but it gets the job done.. And it's free

[Paul Precht]

I bought a nice jet drill set from S and K Speed back around 73, it has .038 to .110" bits. I use a very small battery powered slow speed drill and let the bit pull itself through, I use an old carb to hold the jet. The results are excellent as seen through a magnifying glass.