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Does anyone know the size of the original 4 barrel for a 383 from the factory?
The 340, 383 and non-hp 440 all used the smaller Carter AVS from the factory. The HP 440 used the large AVS (some came with Holleys). This would be before the Thermoquad era.
On an engine that's not going to see high rpms or trips down the 1/4, I'd consider the smaller Thunder for a stronger low end.
Scott B.
"I'm a self-made man... I started with nothing, and I still have most of it!"
68 360 rusty B'cuda 'vert (GO Fish)13.59@ 98.72 mph
69 340 GTS stock 14.18@ 95.60 mph
01 5.9L Ram 1500 Quad Cab 4x4
01 3.5L 300M 16.23@ 86.97 mph
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