I'll first try to see what I can do with the stock lower. I'd like to keep that and try the 3.5 for pump and the 3.0 for E901050X will probably be ok for a 3.5/ 4lb combo at 800+ with E85. But honestly if you pulley down, and looking for more than 850 to the tire, IMO you should step up to a 1300 or comparable. I have a few buddy's that have been down this road with the new G4 so far, and if you are seeking big power, its probably best to make sure you have some headroom with a bigger injector. Cant wait to hear how she does. I have to live through everyone else at the moment, while my short block is being put together. But when its done, I will be hunting 1k+ through an auto with the G4.
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