![]() NOTE: This reproduction fuel sending unit is NOT designed for use with high volume aftermarket fuel pumps that have increased current loads. Note on the spectra tank, look into improving the vent while filling, I have to drizzle gas into the tank - the one downside.Brand new Spectra Premium fuel sending unit (aka fuel pump hanger) for all 1984-1987 Vin 9 (non-intercooled 3.8 SFI Turbo) & Vin 7 (intercooled 3.8 SFI Turbo) Buick Grand National, Turbo Regal, and 1987 GNX with analog or digital dash. I used a spectra TBI Monte tank with a GN hanger and a Aeromotive Stealth 340lph, and a corvette filter regulator. Just seems like a simple solution, sonce there are a lot of aftermarket suppliers making tanks, that one could be made to use the OEM fuel sending unit. An OEM fuel sending unit is a much better design, doesn't require a sumped/baffled tank, & with supercharger & OEM ECM/controller, can use a PWM pump (ZLI pump) & then no need for a pressure regulator. Yes an EFI tank from a TBI or GN will work. Coming from a carb, you would have to run a fuel pump power wire, I believe there's some Hotwire kits out there that ought to work pretty well. No reason a walbro 455 wouldn't work these days, I don't think. '85 and up 4.3 TBI or GN tank and sender should do it, right? I started with one stock and just switched the pump in the stock sending unit from the low pressure TBI pump to a Walbro 255 and it was done.
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