[blykins]

OK....I found it on Barry Grant's website. Looks like it comes with a 6.5.

And it looks like I was smoking crack about the factory jet sizes. I know for a fact what it has in it now and what progression we used, but I was off on what it came with. The website says it comes with a 75/83 setup. I may go back to a jet setup maybe 2 sizes up from that and see if that helps.

The website says an 850 Mighty Demon comes with 85's and 93's. Everyone's told me that I should have went with an 850 over a 750 for 425 ci. Maybe I'm not that far off with the jets sizes that are in there......But then again, an 850 has bigger venturis and bigger buttefly diameters too...

So I really don't know what order to progress in now.....I'm gonna try to get a little dyno time......but what should I do first? Regulate the fuel pressure? Switch jets back down to factory spec?

The fuel should be just visible in the fuel bowl sights, right?