hi guys, i my 3 port race makes a popping sound right after the straight.i belive is what you guys call lean bogging.would that be the low or top needle i have to adjust. my current settings are hsn is flush and my lsn is 1.25 in from flush.whats confusing me is that the engine is around 200 deg.(with my temp gun) with no body.but the engine and pipe gets real hot(burning hot).my shimming is 1 silver and 1 copper.also it was killing plugs.od77t.


thanks