im thinking about changing out my old ignition. I just got the truck and dont know much about it. Its a 77 Blazer with 350. I dont know what type of ignition it is..I dont think i have points. What type of performance ignition should i get? How much will it cost me nad can i do it myself? Im good with trucks. ALso im looking into buying a new cam. What should i look for in those too.? On more..Hooker Headers or Flowtech?