The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Anyone have an opinion on Jet Performance carbs?

Jim_PA · 03-22-2010, 09:31 PM

Just like any other performance carb (holley, edelbrock, BG, etc...), it will use a somewhat generic combination of air/fuel passage sizes so that it will work "pretty good" on a wide variety of performance engines. It's really nothing all that special, but should work OK, and look like new.

I would imagine the stages are like a 1, 2, and 3? -- all 3 just use a little different combination of passages and jets to get you in the ballpark.

I bolted the qjet on my junkyard 350 that I had self-tuned to my 400+ HP 350, and it seems to work pretty well without any changes.

I think the main thing with a qjet is they are generally emissions carbs, and are tuned specifically for the engine they came through on. Throw that onto something with even just headers and a cam swap, and will probably be missing out on a lot of the potential.

03-22-2010, 09:31 PM	#3
Jim_PA Registered User Join Date: May 2005 Location: PA Posts: 2,696	Re: Anyone have an opinion on Jet Performance carbs? Just like any other performance carb (holley, edelbrock, BG, etc...), it will use a somewhat generic combination of air/fuel passage sizes so that it will work "pretty good" on a wide variety of performance engines. It's really nothing all that special, but should work OK, and look like new. I would imagine the stages are like a 1, 2, and 3? -- all 3 just use a little different combination of passages and jets to get you in the ballpark. I bolted the qjet on my junkyard 350 that I had self-tuned to my 400+ HP 350, and it seems to work pretty well without any changes. I think the main thing with a qjet is they are generally emissions carbs, and are tuned specifically for the engine they came through on. Throw that onto something with even just headers and a cam swap, and will probably be missing out on a lot of the potential.