I just bought a set of injectors . the guy said they were svo ford 30 balanced injectors. They don't look like the ones I see on this site. They have a polished body and read top. They say ford on them . Were I think the serial number would be it looks like they're scratched out is this common on a balanced set of injectors and has anyone seen the polished body svo 30s they were on a ls1. I tried to post pictures but I couldn't figure out how if anyone could help I would really appreciate it