I went up to my local Harbor Freight and checked out the Predator 212cc, they have 8 Hemi motors there!!! If I was to get one to replace my older predator what can I expect to be different, I don't plan on changing anything, I do have a header pipe on my motor now, I might change the air cleaner to a performance one but thats about it. Will it be faster, more torque, smoother idle??? Thanks!