what are the best spark plugs i can get for my 1969 chevy corvette with a 350 engine?
i һаνе іt 40 over wіtһ flat top JE pistons аחԁ a bіɡɡеr cam wіtһ a wiend intake аחԁ a 600cfm holly carb
i һаνе іt 40 over wіtһ flat top JE pistons аחԁ a bіɡɡеr cam wіtһ a wiend intake аחԁ a 600cfm holly carb
champions were used from the factory and are still a good choice for a stock motor
I started using ACDelco R45ts in all my chevy engines years ago, and have not found a better all round plug. You may need to adjust the heat range of the plug to better fit your engine.
http://www.acdelco.com/parts/sparkplugs/identification.jsp
I’m guessing you are running a HEI ignition. If you haven’t already done it, you will get a little more power if you use a high voltage coil and module in the distributor.
http://store.summitracing.com/partdetail.asp?part=SUM%2D850030&autoview=sku
High voltage coil I hope. I just tried the new E-3 plug and have seat of the pants difference in the performance and economy.