Quote Originally Posted by PJG1173 View Post
I did the same thing several months ago. I didn't see that many spark tables, but who knows I looked at several .tun files and they all seemed different. I found that these tables ended up being very conservative for use in both my vortec headed motors and I ended up adding up to 12* in some areas. IDK might be from having aftermarket cam and port work. some of them had an optimal spark table which looked very aggressive though.
I might have been more accurate if I had posted, a total of 21 spark parameters including spark tables. I think the spark table has to be tailored to the camshaft profile.

dave w