5.9 magnum turbo/supercharged timing advance

[jbliss15]

I have my timing set at 18 WOT at around 8-9psi, no audible pining, 92oct....

these old style slow burn heads 18 seems safe for timing? i've seen other 5.9magnum tunes that had less timing like 14 but they are on built motors with aftermarket heads.

anyone have input on wot timing under boost for stock heads?

[STAGEUP]

I usually run 14-16* on 91 octane and about 8 psi for these older 5.9s

[jbliss15]

I usually run 14-16* on 91 octane and about 8 psi for these older 5.9s

Does a couple more degrees even make more power? Can you tell?

[jbliss15]

I've been running 18 at 10psi

Trapped 106