I am thinking about getting an offset key for mine. Last time I did a valve adjust 2 months ago, timing was off 5*. Would a new key really help this? Injection timing will still be off time.

If I should, only the 4* or 6.5* keys are ones I can find. Eather way I'm still off time. Would 1* retarded or 1.5* advanced as the valve timing outcome be better for city/highway and occasional comic drag race entry?