Review on 🔧 Optimized Sierra 18-5273 Tune Up Kit for GM V-8 Engines featuring Thunderbolt IV & V HEI Ignitions by Wayne Ohlrogge

So I bought an OEM set (Quicksilver) and a Sierra set and combined them. THERE IS NO DOUBT the quality of Quicksilver was BETTER! The OEM fit and finish was much better! Not that the Sierra was bad. But you can tell the attention to detail and quality was evident at Quicksilver. Just like the rotor. (?) to see how they both work and hold up. I wouldn't buy a Sierra, I could if I was on a very tight budget. but because of the small price difference. I will buy OEM 1st when available.