JMacPerformance 440 Horsepower - 473 LBFT 383 Small Block Chevy dyno pull

9.5/1 compression, SCAT cast steel bottom end with Keith Black Hypereutectic pistons, Howards cams flat tappet camshaft, World Products 200 cc cylinder heads, roller tip rocker arms, Edelbrock 750 cfm carb. HEI distributor. Built by JMacPerformance.com

[@Aidanthebigman]

Cam specs and head flow no.?

[@JohnMcKindley]

You can see the complete build information with flow beach numbers, cam spec's etc.. on my web site jmacperformance.com/