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Original Carburetor Size for 454
G'Day Guys Just got myself a 1973 GMC 3500 Factory 454. During its life it got big HOLLEY on it. Problem is it drink petrol like there is no tomorrow. As far as I can workout the engine is still stock. What was the size of the original Rochestor? What size would be a good replacement?- GMC DOWNUNDER
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- Replies: 16
- Forum: Engine & Performance
