Car reving high in idle the goes to nothing

I did. there is a crack on side. is there a way to fix this or find a replacing part that even still sell?

Is the crack on the part or the block that it screws into?

Roy

Unfortunately the block it screws into...

Nothing you can do about that. It needs another block.

Roy

I found part on eBay. How do I remove it? is it just the four bolts?

What part? Can you post a picture of the part?

Roy