Perhaps they are using the stock fuel pump and just adding 800cc injectors? The stock pump only flows 170gph or so. I wouldn't be surprised if the stock pump maxes out there.

I'm pulling a set of DW800's to swap in the 1000's on Monday. I can't imagine that Cobb would even be hitting 300hp on the dyno that I go to, if they are matching power with a 93 map. If 93 isn't readily available in your area then maybe that's cool...we have a lot of 93 around here, tho.

Get a dyno tune! It'd be worth a drive if you have to.

 

Right! Don't get creative and go with the 1000 cc injectors, unless you are going to get it tuned and adjust the injector scaling.