Hmm..
There is just one problem and that is...
Fruity Slayer is just nót what you want to use. It's sort of a bad VST.
You might want to 'purchase' (read, download) native instruments or nexus if you want to use a guitar in your songs (:
The delay takes all of the sound with it. You might want to add some attack to get a clean sound (or do it the easy way, cut away some of the 'in') without clicking, since the clicks are made in the very first nanoseconds. Problem there is, that it will sound a líttle offbeat.
You can't delay something without getting the sounds in the 'original' note.
I can hardly explain, but my biggest hint would be, do not use FL slayer.