ok so i have a 83' 280zx fitted with some old weber dcoe 42 8s on a cannon manifold. holley red fuel pump 3psi pressure with a return line unregulated. heres my issue: i checked my timing tonight with an inductive timing light just to see what was going on down there {gigity} and @1000rpm shes at about 30* initial, and @3000rpm shes somewhere like 45* if i rotate the distributer in the retarded direction i get pops and bursts of flaming hell fire out of my air horns?? Im Rick hello all