This is my sled.
(Mods I have done... 8AB with 2.4 in all holes, YSY Primary, 14.5 mm rollers, 50/40 helix, Green secondary twisted to 80 degree, Reed spacers modification, Single HD gasket, 2" hole in 1rst baffle of stock exhaust can.)
I kept my jets stock and it works perfectly. The plugs are always a light brown and the tempa flow is set right to the dot. I did run it a bit to the darker side but change it to the dot and they are much nicer looking.
The only problem with a tempa flow that I don't like is that if you stop for a pop just before a river, you won't be able to keep up with the boys when you take off. They say that you could do some damage. I do notice a big change after about 1/4 mile. It seems to come into itself and really works well.
If you don't mind the initial warm up after stopping for a pop, it really does work well.
Plugs are always a nice color. Doesn't matter how warm it gets.
Chris