I have a 68 327 all new, all the wiring is new painless the whole car has been off the frame redone. Engine new rebuild, new MSD dist. I can get 12 volts to the distributor and when cranking 9.7 to 10.2 volts but I can't get spark. I have changed distributors and same thing. This is not a stock car 10.5 -1 holley 750, HEi, hedders March system on the front with classic air and power steering. Everything is brand new and I don't know what to do next.I have tried everything I know and thats not sayin alot but anyone have any ideas. I have read the other post on this subject and nothing in those post gets me fire.