Winter is still hang on here but finally got to take my y block out for test drive. During the winter went from a 2 to 4 barrel on a 57, 312. Used a 57 intake, a 57 distributor ( w/points ), and Holley 570 cfm carb. All seemed to go well, fired up great, timed it and figured all was good. Finally got to take it out for test drive today. Started perfect, started down road slow increase speed in 1st at about 3000 rpm stared to run funny tach jumped 6-7k but motor rpm was still running as should motor seemed to be running ruff. Shifted to 2nd and again at about 3000 rpm did same.
Do not know we’re to start looking. I believe points are set correct, and timing ( what should timing and point be ) . Am running the dist vacuum off carburetor ( maybe should run off manifold source ) ?? I do have another dist from a 61 I could try. But really have no clue.
Any help would be great.