Hello From Scotland

How did you fix.....did you remap
 
Welcome from East Texas, Jez211! - Maybe you should leave it be. as @idk said, any more power & ya may end up in the drink.... Maybe the decel popping will hold ya back like a parachute
 
Hello and welcome from another Englishman..Sounds like your map need a tweak..
 
welcome from arizona
u only joined to pump us for info! well that's ok
try this link
back fire issues
there is more if u do the search
 
Welcome from the mainland Jez,what Island are you on?
 
Welcome aboard Jez. You'll find plenty of buddies and advice on here even if you don't have many where you live.