Who has the best deal on a SFI flexplate for internally balancing a 455? I have a Cat one for external bal. I called them and they do not offer one for internally balancing. I think I could cut off the weight and use it, or if I can get a smoking deal on a new one for internal bal. I'll just buy it, and keep the external one for later on. I know TA has the JW wheel for both, but they're about $200.... Thanks. Gary G.