Head/Manifold Combination Airflow Chart
Ported AFR 210 head/various manifolds
CFM @ 28 inches water
SuperFlow 600 Bench
Runner No. 6 @ 0.750-inch valve lift
| Intake | CFM As-Cast | CFM Ported | Difference |
| Performer RPM Air-Gap | 251 | 267 | +16 CFM |
| Victor Jr. | 247 | 276 | +29 CFM |
| Super Victor | 258 | 282 | +24 CFM |
Air Consumption Results
SuperFlow air-turbine
Recorded CFM air consumption
| Recorded Air Consumption CFM @ 7,000 rpm |
| Manifold | As-Cast | Ported |
| Air-Gap | 728 | 743 |
| Victor Jr. | 750 | 772 |
| Super Victor | 769 | 783 |
Cylinder Head Flow Chart
AFR 210 Ported by Dr. J's
CFM Port Flow @ 28 inches water
SuperFlow 600 Bench
| | Intake | Exhaust |
| Lift |
| 0.100 | 72 | 58 |
| 0.200 | 145 | 113 |
| 0.300 | 194 | 152 |
| 0.400 | 242 | 198 |
| 0.500 | 272 | 225 |
| 0.600 | 289 | 240 |
| 0.700 | 298 | 247 |
| 0.750 | 301 | 251 |
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