They can be converted and will work and will give you a power increase. But they will definately not be optimal for your setup. If you decide to convert them, I would start w/drilling the dump tubes at .120 and run the main to start at .120. You will prolly be rich, but that is where you wanna start. You will also want to start w/a large pilot. You may want to ask Fouledout421. He had a set of stockers converted that him or his brother in law ran, he may even still have them. He may sell them, but if not, will be able to set you up.
You may not be able to contact him till after the weekend, he is at a race.