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Forum: 66-67 GTO Tempest & LeMans TECH 11-02-2021, 06:50 PM
Replies: 97
Views: 66,956
Posted By U47
In stock form 67 is better because; 1. 400...

In stock form 67 is better because;
1. 400 inches.
2. Better heads with the valve angle = larger valves.
3. Q jet carb and manifold- great for mileage, road racing, better fuel distribution.
4....
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