455 Pontiac engine start up

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455 Pontiac video running 080
1970 Pontiac 455 GTO engine running on test stand Gregg Elliott

Pontiac 455 dyno pull
Pontiac 455 Dyno pull made 595 horsepower.

Pontiac 455 Rebuild and Dyno results
Engine was overbuilt to allow easy HP gain with bolt on parts later. Running a 66 Tri Power with stock #64 455 Heads, Oliver rods, Ross pistons, Eagle forged crank. This engine will be installed in my 1966 Catalina that I am currently restoring.