I ordered TFS heads from summit last year in June , ship date was September , then in September I received a message from them new ship date will be December. Then in December another message new ship date June. June came and went and I inquired to summit and they replied they did not have any info.on availability, then 5 days later fed ex drops them at my front door. Only took 1 year. I am so stoked I can finally finish my engine