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well I'm going to the race way in tacoma washington.. this weekend.. ill have my mill and pipe setup put on a dyno. and tuned and temped.

ok little info I'm needing about a car preloading.. is that to rich or to lean.. in low end or high end..
 
do you mean it loads up fuel while it's idling?
if so that would mean you're too rich on your LSN...
 
Go over to nitrohouse.com and read the tuning tips from paris racing. A common mistake made is to have too little idle bar and too rich lsn, leaving the chamber full of fuel mixture after letting off the throttle. I was having this problem at first when setting up my RB.
 
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