Hi Guys,

Can I race tune now my engine? I plan to race the engine in 4 days time....I broke it in 2 days ago..i followed sirio's break in procedure from their website....i was able to burn 13 tanks already...I already leaned out the HSN a bit on the 10th tank....Im planning to run again tomorrow and will try to lean the LSN coz it is still rich(factory's default).

Im not yet satisfied with the power, will leaning the LSN increase its power considerably?

Thanks!!