Hi, Guys I finally finished rebuilding my Allen Distributor Machine and updating the electronics. It works great, and now I'm jumping into the distributors (Marelli type S 159 A dual point) from my carbed 1975 308/GT4. The advance curves were way off, non-linear and mismatched. I will be photographing and documenting all my work, and plan to submit my results as a tech article to this forum. I am determined to find out and document the effect of the springs and weights, and develop a procedure for correcting their operation I have a couple of questions for your collective wisdom (1) The workshop manual shows the advance curve for R1 as linear from 0 degrees at 600 RPM distributor speed to 13 degrees at 3400 RPM distributor speed with the static advance of 6 degrees BTDC (Max advance of 19 degrees) The emission control supplement shows 0 degrees at 600 RPM to 5 degrees at 900 RPM, then linear to 16.5 degrees at 3000 RPM with the static advance of 3 degrees ATDC (Max advance 13.5 degrees). Which one should I be shooting for on a motor with no emissions controls (exempt)? What should the maximum overall advance be? (Static timing + Centrifigual advance). (2) Lubrication of the advance mechanism. Mine had been totally greased up inside with pretty heavy grease. I cleaned it all out and then checked for recommendations. They ranged from light machine oil to Bosch distributor grease. What I've settled on is Bosch distributor grease on the posts, sliders and shaft. Light oil on the springs, pins and caps. Any comments? You're probably thinking "Why not just go to a modern single elecronic distributor set-up?" You're probably right, but I am determined to make this machine work the way Enzo and the Boys intended. Thanks in advance for the help.