Well, might have to do something before Saturday.

Had a good drive into work in the RR at 6 am, ran smooth and strong.

But coming home tonight I had some pinging/knocking under load - going slow uphill in traffic in 3rd while giving it some gas.

I'd like to drive it again tomorrow, but sure would like to do something quick to try to eliminate that pinging, just to get me through the week so I can take my time on Saturday with the whole procedure.

I know I could just keep the RPMs up - not go slow in 3rd/4th, but other than that, would the only quick fix be to temporarily advance the initial timing from the current 15 up to around 20?

Any suggestions?