Scorpion Narrow Body Full Roller Rocker Arm - 3/8 in Stud Mount - 1.50 Ratio - Blue Anodized - Small Block Chevy - Set of 16 H777C08XS You can also set an

You can also set an rpm limit that will protect your engine from overrev damage caused by a missed shift or driveline failure

1/8" NPT Boost Reference - 1:1

TCI's Tech manual for GM TH400 gives you all the diagrams

Manifold height: A-7

450Since 1938

Scorpion Narrow Body Full Roller Rocker Arm - 3/8 in Stud Mount - 1.50 Ratio - Blue Anodized - Small Block Chevy - Set of 16 H777C08XS You can also set an1. 5 Ratio Small Block Chevy 3 8 Stud V 8 305 350 Vortec Narrow Body Blue Race Rocker Arm Set of 16 Lightweight 7000 series aerospace grade aluminum body Anodized for protection and durability center bolt valve covers Affordable, durable blue anodized rocker arms feature rollerized, needle bearing fulcrum assemblies, wide contact roller tips and locking nuts. Sold in sets of 16. Rocker Arm Features: Scorpion Racing Products is a leading American