what size is the stock 4bbl carb on an lg4
Member
Joined: Sep 2004
Posts: 154
Likes: 0
From: Nor Cal
Car: 1985 Camaro Z-28
Engine: 305 V-8 4BBL (H) Supercharged
Transmission: 700R4
Axle/Gears: 3.42 Eaton Posi
I think it's around 750 isn't it? Same as the old quadrajets from the late 70's and early 80's only with computer controls for idle mixture and emissions.
Supreme Member
Joined: Jan 2002
Posts: 3,852
Likes: 1
From: Valley of the Sun
Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
Yep they are huge, upto 780cfm+ but are usually restricted down to flow less. Gotta love those huge secondaries.
Joined: Sep 2004
Posts: 2,777
Likes: 7
From: Casselberry, FLA
Car: 88 V6 'bird/89TBI bird/85 T/A
Engine: 2.8/TBI/TPI
Transmission: V8 T-5/700R4 x2
Axle/Gears: 3.42 open/2.73 open/ 3.27 9 bolt
More like 650-690 I think. You can measure it, the bores are not the same. My Buick 455 has a 795 Quad on it, and the cc Quad doesn't look the same to me in the bores.
Member
Joined: Sep 2004
Posts: 154
Likes: 0
From: Nor Cal
Car: 1985 Camaro Z-28
Engine: 305 V-8 4BBL (H) Supercharged
Transmission: 700R4
Axle/Gears: 3.42 Eaton Posi
There's nothing like the sound of those barn doors opening and $2.80 a gallon fuel pouring down them....BAAAWAAAAAAAAAAA!!!!
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