quadrajet

[Brandon_l1000]

hey guys just had a question i was looking on the internet and talking to some older guys the other day about quadrajets. From what i gathered there were 750's and 800's, and some of the 800's were rare on certain vehicles. so my question is, is a 800 rare on a chevy truck with a 350?

 

[dhamp]

I'm not expert by any stretch, but I'd be very surprised to find a 350 that came with more than a 650 carb on it. I'd think even a moderate build or more on a SBC wouldn't benefit from more than 700-750CFM. Again, I'm no carb expert at all. Just using what little logic I own.

 

[crazy4offroad]

I doubt you'd find an 800 on a 350 that came from the factory that way, but that's not to say someone wouldn't have swapped one on. The bigger CFM carbs are mostly for big blocks.

 

[Brandon_l1000]

That's what I thought to but the truck has a 800 on it and my dad bought it brand new and never changed the carb. He said it has never even been off the truck.

 

[HotRodPC]

I'm not expert by any stretch, but I'd be very surprised to find a 350 that came with more than a 650 carb on it. I'd think even a moderate build or more on a SBC wouldn't benefit from more than 700-750CFM. Again, I'm no carb expert at all. Just using what little logic I own.

Its true, most qjets are in the 700's even on 327's and 350's. IIRC, I want to say most are rated at 780cfm. But, they are actually de or down jetted if you want to call it that. Qjets actually use metering rods rather than jets.

 

[WHEELMAN]

auto mfg..could of had some carbs sitting around..needing to use them..but just because.it may be a 700 800 cfm...it could be jetted down..i see a lot of carbs.on craigs list.people are wanting to trade down.from 750 cfm...to 600cfm
saves gas..in the old days..all the guys wanted 750 holley dual feeds..they did a lot of street racing..

 

[Manbearpig]

I have a Pontiac 800 sitting in my garage