What octane gas are you nitrous guys running?
 

87? 89? 91? 93? 94? 94+ octane boosters???

Straight Sunoco 104 or VP Fuels Street Blaze 103. Either one will help prevent preignition and detonation with heavy shots of nitrous. Cut back the ground straps on your copper-center NGK two-heat-range-colder plugs and side-gap them to .035,

I've been running a dual-stage of 150-shot all last season. This combination keeps my engine alive, regardless of what stupid things I do at the strip...

Note the PB time slip in my sig.

93 on the road and 110 at the track

I ran Sunoco 116 with my 50 shot to get my best time 2 years ago

Add some Toluene, it helps boost octane.

How much and where do I get these insane octane race fuels, do I have to empty my tank entirely and what if i run stock emissions; cat and that

In Cleveland you should be able to find a few shops that have Sunoco or VP Racing fuels - call around, check the yellow pages. Anything higher than 103-104 octane is very likely to be leaded gas. Don't do that to your oxygen sensors. Both companies have specs on the Internet - study them - Google around.. Drag strips usually sell Sunoco fuel, also.

You need the proper container to buy some. Usually they'll sell you 5-gal plastic jugs for race fuel, or 5-gallon cans are acceptable. These race fuels aren't gasoline, and the stuff can wreck lawnmower-gas plastic jugs. Do it right. When you spill some on concrete, it evaporates almost immediately !

You can mix with conventional gas, but the effect can be unpredictable. I would never mix real race fuel with conventional gasoline at under a 10:1 ratio. Run your tank nearly dry of pump gas and put at least 5 gallons of race fuel in the tank. The stuff sells for 8-9 dollars/gallon around here, so be prepared.

Don't bother with octane boosters or xylene or tolulene - they don't have the additives that race fuels have to prevent preignition or detonation. Used correctly, along with copper-cored NGK plugs two ranges colder and cut-back ground straps, you should be much safer on the track.

i use a 91 and 101 mix. i usually put in about 5 gallons of 101 in when i spray

i run 93 all of the time.