Originally Posted by nikolass

do y8's really have that bad of a timing issue?

Originally Posted by Joseph Davis

If you do an OBD1 conversion on a Y8, you will not find 12 degrees base timing with the distributor anywhere remotely near center. This is not a problem, stop making something out of nothing over it.

P2P maps are minimum allowed timing maps, they are most certainly NOT the timing maps you run when OBD1 converted. Take Z6 mappings for NA, set your ignition timing for 10-12 degrees at 10 psi. This will make a decent basemap to tune from, and the engine will likely want more timing in the lower and midrange RPMs, but don't ---- with it until you get it on a dyno.