I use Jerry's static procedure to get the timing good enough to start and run, but I differ on my fine tuning procedure.
I learned along time ago to throw out the std timing procedures when dealing with modified engines.
One method I've found to be easy and accurate is to set the timing at the engines max advance rpm and don't sweat the idle timing.
With the vacuum advance disconnected and capped, I run the engine up to 2500-3000 rpm and set the advance to 30 degrees advanced.
The 216 likes 30 degrees BTDC (which is very close to the stock BB setting at 550 rpm). My ACVW 1600 slightly modified engine likes 32 degrees BTDC. The freshly rebuilt 235 that is also modified is setting at 30 on the run stand but I will fine tune it via the "ping" test once I install it.
I've tried the max vacuum at idle procedure but ended up doing alot of "ping" fine tuning. The max advance procedure seems to require less ping testing to fine tune.
