Does anyone know who makes rods, pistons for the F23a1, I have turbocharged it and now want to build it for higher boost! I am only looking to run about 15psi on a T3/t4 can't remeber trim. Crower told me they think the rods from the F22 and F23 are the same, it just has a different stroke! Anyone with the specs on the pistons or rods please let me know or any suggestions on where to find the specs and or people who sell them! I think I am going to use the Crower rods for an H22 which I belive are about 0.144" longer than the F22 which for now I am assuming are the same as my F23. Think I need to upgrade anything other than rods/pistons and piston rings to run only like 12-15. Does anyone know if the F23 has Iron sleeves or Aluminum? Open Deck or Closed?