Adding weight, but don't want a big wheelie....

'63GT said
You could try wiring a switch on your shifter to activate your timing retard.. say -4-6°, and if you spin for some reason, you could put your timing back in at the flick of a switch to recover from it.

I don't have anything fancy like that, I have to turn my distributor to change the timing...but yes, that would be a neat way to do it if I did.