hey guys i have a 96 f3 with 42k on it i put a v&h powerpak ecu in it and set it to the highest igniton advance setting, plus i have an ignition advance rotor already on the bike also has full D&D exhaust,air filter, manual cct, fresh plugs and oil. problem is when i shift down hard or decelerate i hear a tiny knockin like a spark knock in the front end its not the exhaust im used to that. just wondering if any one has any ideas i talke to idodirt when i put the ecu in and he said to watch out for the spark knock. so im just thinking of what i should do i noticed a little gain with the power pak... im not even sure its that big of a deal thanks for any help guys...p.s. i knocked the advance down 1 setting and the knock seems to get a little louder i just did the advance i have left the rev limiter at the stock position.