I've got a ticking noise when I give it full thottle, it only does it about 10-20% of the time. I have put octane booster in thinking it may be too low of ocane gas but it didn't make any difference. Anyone have any ideas what it could be.

 

thast called spark nock .. or ping.. or detonation..

if you search these topics in the search function youll find LOADS of info and how tos to fix the problem

 

what do your spark plugs look like?