Just wondered what tips you seasoned drag racers have for launching an auto? My factory tires seem to break loose at about 1800 rpms. I experimented a little with different launch rpms but seemed to do the best just under 1800. I know drag radials would be a big help and would probably let me squeeze out a few hundred more rpm's before the tires would start to spin. Also, does anyone shift the auto themselves (stock valve-body and converter)? Again, I'm thinking the predator would help out alot as far as setting shift points, shift firmness, etc.