For our 5.7L 392 test motor, we chose the 73cc chamber heads that, combined with the dished Wiseco pistons, produced a static compression ratio of just under 10.0:1 with the Edelbrock heads, or 9. ...

For those who aren't familiar with them, these Chevrolet Performance Goodwrench 5.7L/350 engines they have approximately 8.5:1 compression with a base horsepower rating of 195 and will make up to ...