I have a 96-2000 454 # 12568777 in my Baja. Been running MR 43 TS Delco plugs , but seem to burn cool at low rpms. I looked up casting number on block# 10237297. Turns out that number comes up a Vortech motor. Can i run MR 43 LTS plugs( longer plug) with hitting pistons or valves.
