91 Octane

Would like help better understanding what my engine is going through, was running NGK .022 gap for the last 4 years just fine and went from MHD V7 map to a V10 after changing plugs with the same style and same gap, but get really bad misfires around 11psi and above around 4k-4500 rpm

Felt good

This pass included a 7 point octane booster. The car ran 13.35

A bassi regimi e sotto carico la macchina è ruvida e gira male. Anche al minimo in folle sembra che giri a 5. Si sente tanto in 6a a bassi giri. Il contagiri oscilla. Non ci sono errori in centralina di mancate accensioni.