chargerstv

Hi All,
Planning on swapping my factory 2 Barrel carb and intake.What is the best intake aftermarket and carb to use or is it better to go with the factory 4 Barrel setup.The engine is completely stock with 57000 miles.
Cheers,
Keith

olds 307 and 403

A Qjet with a factory 350 calibration and iron intake from the year of your motor. You can also go Performer if you plan on leaving it basically stock. The Performer RPM intake is better if planning upgrades. A Street Demon 625 or Quickfuel 600 Slayer in aftermarket if staying stock and either in a 750 if planning upgrades. All the aftermarket carbs will need calibration to your motor.

joe_padavano

Define "best". What car, what trans, what gears? How do you plan to use it? What is most important to you - cost, HP, mileage, ease of installation?

chargerstv

Thanks for the replies.
Completely stock with Turbo 350 Trans and original highway 275 gears.Car is just used to attend a few shows around close by and the occasional sunday drive.I want to keep the stock look.
Keith

olds 307 and 403

What year?

chargerstv

1972

69CSHC

I had this work done on my first car a 1967 Cutlass 330 2bbl stock low miles. Its been almost 30 years and i'm going off memory so bear with me. I went with the Edelbrock Performer intake and the Holley 600 cfm. Carb setup needed some fabrication in order to work correctly IIRC. Car worked well and ran well but to be honest it did not feel like I thought it would.

I can only assume you are looking for a little extra oomph. My advice is proceed with caution and be very thorough following trough with all your moves.

I have owned several Oldsmobile's over the past 30 years. All of them stock or stockish. Many of them in the 200 hp net range. Some came with 3.08, 3.23, 3.73, rear gears. Without a doubt the higher that number was the more aggressive the car felt. Even though i have never had a rear swapped with maximum performance in mind, i am fairly certain that this is the best bang for the buck.

olds 307 and 403

You want a 70 to 72 non EGR cast iron, I believe the pre 70 used a divorced choke A Performer will work but the 2711 needs an electric choke or the 3711, a EGR block off plate. Get a Qjet built to 72 350 auto specs.