dually
there are sevral things u can do . starting with uping the fuel pressure to the tbi .my 93 now has a 505 in it with a reprogramed chip with the stock tbi i can pull hills at 70 with a 28ft car trailer. in 4 th gear if i chose too. the other is the new fast ez efi its a self programeing fuel injection unit . i have spent alot of time research and money . trying to make my dually do what i wanted to . the cheapest and easyest is the efi unit from fast .i also added a cam .
depends on how much money u wanna spend. im curently working on a bank to bank injection for mine thats more coast efective .if ur not in a huge hurry
ill let u know how it works . if you intrested let me know .or if theres anny thing i can do to help let me know
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