dude i would listen to estie. 1st of all he's a nopi driver and in the top 10 in points right now, second he works in a shop. he knows what he is doing. so check your fuel pressure then check your filter. also check timing. i had messed with mine before and even advancing by 5 degrees will give you a bog.
ok, i think its the fuel pump, thats what i thoought it was in the first place, im gona get a new one tommarow.. filter is new, thanks guys.. ill post the news later..