I am looking for a simple plugin to change the default amount of blocks a piston can move from 12 to a larger number like 40 or 50. OR include a config file to change it ourselves I have done a google search and searched the plugins but couldn't find anything.
iJames55 I've been working on a plugin that will do this (and more). I've just gotten it to a releasable point, so its project page is still awaiting approval, but once it and the file are approved, I believe it will do what you want.
Got to this before me, but I also think Essentials can do this, unless I read this wrong... Although in Essentials you can change what blocks Pistions can move.
iPadHD I believe Essentials only prevents pistons from moving certain blocks. You can't use it to make a block, say bedrock, move if it normally can't. I don't think it can change how many blocks a piston can move either.
iJames55, iPadHD, or anyone who might be interested, the project is on BukkitDev, with a file pending approval.