JasonMiller94SC
Registered User
I've been running the autolite 103's for the past year and I'm thinking about going with the Iridium plugs this year. I'm not sure what to gap them at. The 103's I had gapped between 35-40 but Santa brought me a new screaming demon coil pack and a set of livewires. I'm running 16-17 pounds of boost and the car made 290 rwhp without nitrous and 340 rwhp with a dry shot. Should I keep the gap the same with the new plugs/wires/coil or can I open it up to around 45-50?