Stall converter recommendations

There used to be a local-to-me place. I never met them but some faster running friends of mine swore by the product. They built some great pieces and IIRC fairly cheaply. I don't believe they ever got to "household name" recognition. I think the place might still be there but the fellow that made the parts so good left. He started his own company. That would be Lenny at Ultimate. So while I wouldnt say that story is common, sometimes the local guys aren't as bad as some might be. If it was me, I'd ask for names of guys running them. Go to your local tracks and ask around. Usually the adadge "Speed costs money son. How fast do you want to go?" fits convertors the majority of the time but sometimes you find the diamond in the rough.