I'm trying to make my 86 f150 as fuel efficient as I can. I want to put a sniper efi 2300 on my 300. I was wondering if any one had seen any fuel economy improvement. I'm not looking for performance gains just fuel economy. Is the 2 barrel to 1 barrel adapter a good way to go or should I buy once and cry once and spend the extra 380$ on an offy intake and reduce it down to the 2bbl sniper efi?