Airflow Research 235cc Cylinder Head Performance Test - Maximum Velocity
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The original AFR 227 configuration generated 610 horsepower at 6,600 rpm and 530 lb-ft at 5,200 rpm. For the follow-up 235cc test session, we left the combination intact, utilizing the same camshaft, manifold, and rocker ratio for a true apples-to-apples comparison. View Related Article
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