Replace it- - - -once a pushrod bends, it's very unlikely you'll ever be able to straighten it. If you want to try straightening, find a piece of plate glass just wide enough for both ends of the rod to hang off the edges, roll it over the glass, and gently tweak the rod until it rolls true. Pack a lunch- - - -you'll be there a while!

Then fix the sticky valve guide that caused the bend in the first place.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!