Quote Originally Posted by BLKCRX
Ping PIng ping Ping ... can happen if you advance it to far...especially how rpm high vacuum (mbar) tuning = correct timing and air fuel, a combination of both will revival greater benefits. But when you change / move the dizzy to advance your timing your putting advance everywhere, tuning puts it where its needed… ie Idle should be 16deg ;-) and low rpm high throttle should be negative / set ignition…… on a typical B engine.
Such a complicated answer. True that it advances throughout the entire rev range, but we're not comparing it to an aftermarket tunable ECU

I advanced my timing a coupe of degrees, ran PULP and got more KMs out of a full tank and there was also a slight improvement in power.