Originally Posted by johnpedamoe
Engine runs rich, should i tune carb first ,thinking rich good lean bad.
currant plug ngk 9. I know its too cold engine loads up after 4 to 5 min of idle, plugs are black .I am just leaning about reading plugs and tuneing. plug I intend on useing autolight ar 3932 ,2 colder than what it should have as a starting point
what I have
598 street engine street driven mud bogger 13'' billet converter
92 octane in one tank c16 in fule cell a bit much but i want to be safe
msd 6 + digital ,book says 2 deg retard, should i start 3 or 4 deg
big shot nos 225 hp and never intend on going to a higher setting till i change the je flat top pistons
nos already instaled I would like to take every safty measure poss
nos will only be used in the pitt for 6 sec or under , fastest run with out nos 4.56 sec 125 foot in 2.5 foot of mud
make sure your fuel system is capable of supporting the nitrious. Also watch your fuel pressure if it is too high the car will run too rich. If it goes too low it will get very expensive. I run a low fuel pressure switch as a safety percaution. they are very cheap insurance.