to 14* base timing instead of 12*. This made a tremendous difference! I know that I hear a lot of people tell me that "change x" made a few hp difference, but I have never been that keen on detecting a change of only a few hp. But, WOW, I can tell a difference with this change! The van takes about the same amount of time to get to full boost (18 psi right now), but the "seat of the pants" feel is more drastic. I am still showing a little rich on the Dawes Device (I have wideband, but have seen for myself that the DD shows lean/rich in accordance with the wideband), but still no knock.
Damn, I love this van!
BTW, I put it on a 260 cid Falcon the other day. Gave him the move at about 40 mph and spanked him all the way to about 90 mph. After we let out of it, he and his passenger came by me with a thumbs-up and two of the biggest smiles I have ever seen! THAT is what it is all about.
-Les