xwagon 168 Posted April 10, 2016 Hey looking for some info on a suitable curve for my 351c in my xa. is one of those MSD ready to run units, has the two stiff springs and the blue stop bushing (21 degrees) at present, 351c 2v open chamber heads, rpm air gap intake, 650 demon, 215/215@0.050 .514 lift, c4 trans , 3.5;1 diff this is a new engine that has not run yet, plan to run on 98 octane Share this post Link to post Share on other sites
Jestr75 41 Posted April 10, 2016 Have got the installation instructions for the dizzy? I think it has a guide in there on what springs and bush to use. I will check mine tomorrow for you. Share this post Link to post Share on other sites
