87/89 dual tune

[Frenchy]

My cousin wanted a tun, but wanted to stick with 87. If I remember right at WOT I could put 8 degrees in it before it knocked and it took 13 at cruise ranges

[chrisj6]

Ok, I think I will start with the WOT timing, then slowly add in part throttle. I remember on my Avalanche, I didnt have to add in a whole lot at part throttle. I'll try at lunch and let ya'll know how it goes.