Is it possible to run 11.99 or better on my setup here.....

[Halon]

It's not the size of the runners that's so important in top end, but more the length of them. 1g manis have long runners, which is why they do very well in the midrange. Pretty much better then most of the aftermarket ones. But the aftermarket ones blow away the 1g manifold on top end, because of their 5-6" long runners.

I don't think I'll be buying a Magnus now. Those prices are getting too steep for me. I'll probably go for that JM one, or unless someone elses locally looks to be nice and worth a try, then maybe that route. Congrats on your buy though. Did you fork the extra money for the bellshaped stacks? If you don't pay that extra little bit, are the runners just flat against the bottom of the plenum, or do they still protrued in a little bit?