June 1968 ~NHRA Stock Class National Records

Teblig

Are you comparing 1968 performance output and results.

Back in 1968, in Stock Class you could;
* Balance the engine internals
* Forged-True Pistons
* Dykes-type Oil Rings
* Blueprint to specifications
* 3/Angle Valve Job
* CC the Cylinder Head combustion chambers to minimum specifications
* Blueprinted Camshaft
* Stock load-rate Valve Springs
* Stock Intake Manifold
* Stock Carburetor
* Headers
* Any Rear-End Gear combination {Typically 4.89 Gears with the 340}
* 7" Wide Slicks

A 'professionally' decently built 340 in 1968 Stock Class {E/S or E/SA} were running 13.10's @ 107 MPH.