hydrazine is some DANGEROUS stuff it is KNOWN to cause cancer and birth defects. at most you"ll pick up 5 hundreths with the stuff. used to be pretty big in the 80s... till people found out what it did !!!!! DON, more boost, and more spray. no need for these sideshow additives, that are RARELY the same compound, and would make tuneing a nightmare.. but if your going to mix it, make SURE you use a hydometer.. at least your "batch" will be consistant....lookup spuds nitro notes. its a pretty good article. we were going to run this in my pm car, but the parts carnage is above my pay grade !!!LOL!!! have a great weekend don.., steve