340 Static Compression Numbers and Test Procedure
Should be all in by 3000 rpm max I would think.
Every engine is different.
The better the chamber the sooner you can bring it in.
But for what it's worth, on a streeter, I never push power timing on the engine...... cuz they always have more power than the chassis can deal with anyway. If the car is running typical 3.55s then 3000 will be about 26mph with an automatic.... and if it don't lite up the tires when you whack it open, then 2 to 4 degrees more timing is not gonna solve that little problem.
But I push real hard to get the Vcan working, to pump up the Part-Throttle power.
And the bottom line is that you only go thru that low-rpm zone once on the way to anywhere at WOT. So if the power-timing is adequate at 3600, that matters more to me then if it's a lil slow getting there.
For the life of me I can't figure out why so many guys want to force-feed power-timing on their engines.......... and/or then not run any Vcan. I mean there are times and combos that might run that way, but not a typical streeter, which is all I work on.