How does this plug look? 4.6 DOHC 3.4 whipple crusher at 25 psi. Afr is set at and running at .71 lamda 10.5 gas scale. Timing set at 18 seeing 15 due to high IAT. Plug is BR7EF. Should I go to an 8?
no speckling on that plug. i haven't pulled the others yet. will probably do that tomorrow. car ran very well on that tuneup. 1.43 60' which is what it used to pull on nitrous. and ran 10.18 @ 127 letting out at 1000' due to hitting 7k limiter that i cannot get rid of. car weighs 4200 with driver.
engine was accelerating very fast. i had to lower the 1-2 shift 3.5 mph from old race gas tune to not hit the limiter.