Looking to upgrade from a 2bbl to a 4 bbl

Besides, who wants to try and hold that heavy intake and try and drop it on the engine with out moving that gasket, but here you would use the metal gasket which clips to the bottom of the heads and holds it in place. Now when you try to put those composite gaskets on there it is a lot trickier and have to be dead on. Sticking them on with copper spray works good and I actually used tape on the ends of the gasket to hold in place until I get the intake on.
You need the AM&P valley pan if you use the composite gaskets or the TA set up that blocks the oil from coming up from cam area.

 

I still like this refurbished by Holley 750. Those carbs are just like brand new. I've bought a couple of them...
Dual feed, dbl accelerator pumps, clear fuel site glass windows, 4 corner idle adjustment, plus a $75 electric choke option.
Plus it is much cooler looking than a q-jet.

https://www.holley.com/products/fue...tory_refurbished_carburetors/parts/FR-4779SAE

 

How do I know which Quadrajet works with my car? Are they all interchangeable? Or is there a favorite version?

What I want to do is replace the exhaust with a duel 2.5" with H pipe from TA coming from my stock manifolds (I have a single exhaust now). And replace the gears (2.56) with something around 3.23 with a posi, and replace the intake with a 4bbl. I dont want to put headers on it because I do the work myself and I dont want to deal with the manifold bolts or trying to get the headers to fit in. I dont see myself replacing the cam or any head work. I have another sports car for screwing around with so this skylark is just for enjoyment, not performance.

 

In general you want a buick 350 carb, the 455 versions are calibrated differently.

 

Thank you

 

Also, if I got a Q jet, can I rebuild it myself? I dont mind the challenge, but should I? Or should I get it built for me?

I think I like the new manifold from TA instead of getting an original... just because its aluminum, lighter and dissipates heat faster (maybe)(not that this makes any difference at all). I wouldn't have to prep it for paint since its new. Knowing my luck, I would buy a warped used original manifold and find out after i got it installed.

 

yup that’s a fine option as well. Either a Holley carb Mart posted above or a Q jet would be fine. Rebuild one yourself if you are up to it sure. The biggest reason to rebuild one yourself instead of having one pro built is time. The q jet. Builders are backlogged, some up to 22 weeks.

The two pluses for the Holley are that they are simple, easy to recalibrate for performance builds. the advantage of a Q jet is they are better on fuel vs a Holley, and they are calibrated specifically for a stock 350. The disadvantage is they are very complicated, lots of parts and pieces as they are more sophisticated. They can also be tricky to setup, although if you buy one from a pro they test them and set them up on an emgine before shipping them out.

The carb I can sell, built for a stock 8.5:1 350 same as your 71 engine.

https://www.v8buick.com/index.php?t...-from-q-power-never-used.381232/#post-3364791

Q power who built the carb above is a family run business, Mark has his wife, and children trained and they produce high quality rebuilds. I think they have about 1000 Q jet cores! They also sell rebuild kits as well as free YouTube training:

https://m.youtube.com/@QuadrajetPowerLLC

 

My .02, having run a Hollley then a Qjet on a stock iron intake for years in the 4300lb 2NABOT...

QUADRAJET, period. Especially on a street car. Only problem with Q-jets is that it's super easy to get a piece of crap abortion of a "rebuilt" carb from any of the major brands - SO get one from either a well-respected builder like Quadrajet Power LLS (He's built two for me, they're both outstanding), or but one from a reputable person here on the board (like Sean).

Qjets aren't that complicated, once you sit down and pay attention to what each bit does - and they're far superior in they're tunability for driveability and economy than a holley. The one I used to have on the 2NABOT drove like EFI - no matter the temp, hit the gas once on a cold engine and fire it up. Once warm it would start with the lightest of bumps with the starter, and I could pull down 16-17 mpg in a big old boat (IF I kept my foot out of it). AND it was the 2nd-fastest 350-powered big Buick on the planet for awhile...

As far as manifolds, I'd say either/or....as long as it has the Qjet pattern (those adapters are crazy restrictive). I'd think you could pick up a used iron one, have it shipped via Greyhound Bus (super cheap!), have it checked for flatness by a machinist, strip and paint it for way less than the TA one, BUT the aluminum ones are SO much easier to hoist in and out...