I'm gona try to explain this the best I can without missing anything. The problem I'm having is when I try to set the timing with a timing light it is way advanced. When I adjust dist. to where the timing should be it quits before I get close. I tore back into it thinking I lined something up wrong. I have a 350 in my 1970 chevy CST/10 I'm running a comp cams magnum cam 270 deg., double roller timing chain, MSD pro-billet dist., blaster 2 coil, and 6AL muti-spark discharge brain box. On the timing chain set there is 3 notches on the crank gear, they are marked off to the left a little with a circle, triangle, and rectangle. I have it on the notch with circle (which I believe is for factory timing). The dots on the cam and crank sprockets are lined up both at 12 o'clock spot with the dist. pointed at no. 1, also no. 1 at TDC compression. I put the timing pointer and harmonic balancer in place and the the mark on the balancer is at about 2 deg. advanced. So what I'm thinking is I have it all put together correctly and the multispark box is messing with my timing light. I'm using a craftsman inductive timing light.
