Carburetor Size Calculator
Volumetric Efficiency
| Engine | VE | Description |
|---|---|---|
| Stock Engine | 0.8 | |
| Slightly Modified | 0.9 | performance cam, ported stock cylinder heads, performance intake manifold, headers, ignition upgrade |
| Highly Modified | 1.0 | aggressive cam, performance intake manifold, headers, ignition upgrade, aftermarket configuration racing cylinder heads, 14:1 or higher compression ratio |
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