Power advantage between Ford 351, Mopar 340 and Chevy 350??

Depends weather a 351 Windsor or Cleveland

Along with a 351M... Plus the 351C 2V or the 351C 4V or the Ram Air/ Boss 351

Also depends if it's a LT-1 or a Goodwrench rebuild...

And it depends if it's a 68-71 340 or a 72-73 340 with dished pistons...