Finding more parts. Looking at clutch hydraulic pull cylinders that mount on the engine/bellhousing. Two choices? Speedway pull or Willwood. What is the preferred cylinder? The Willwood appears to have a longer stroke? Is a return spring needed on the clutch, bell housing arm? Master cylinder sizing for the clutch. What diameter master cylinder is needed for the pull clutch? Is the diameter of the clutch master cylinder; 5/8 inch or 3/4 inch? Hose sizing, use a -3 flex line or -4 (clutch lines should be -4 but there might be success with the -3 line). For the hydraulic line out of clutch cylinder, out with 90 degree or? I know several questions, need assistance sometimes. Thank you in advance. Steve V. V6 in Arizona