Compression ratio versus peak horsepower rpm?

[dibbons]

Just wondering if anyone has any data/experience on a dyno or otherwise if lowering compression (like was done by factory vehicles in the 1970's) changes the horsepower curve of a motor, everything else being equal?

 

[clinteg]

This was just posted http://www.forabodiesonly.com/mopar/showthread.php?t=314393