TIVs are all I do, of course... We have some super race parts developed and always making more, especially valvetrain parts..
Here is the link to
my race pagesI am currently "Full Up" with racers and am not taking any more race engines on for full builds. It is all I can do to support the 7 that I have now.
I offer race engine configuration services as well as consultation, if you buy my parts a portion of this is free.