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TwoFiftyShifter · 09-30-2009, 11:22 PM

3%? My uncle had an '84 K20 with a 305 4bbl and an SM465, got 10/13 city highway mpg, and I have an 87 tbi 350/sm465 and i get 12/15 city highway, alot of it is driver but it seems to better than carbs.... than again it could depend on how the carb is tuned....

09-30-2009, 11:22 PM	#9
TwoFiftyShifter Registered User Join Date: Nov 2008 Location: Gwinnett GA Posts: 1,803	Re: looks like im keepin the 87 3%? My uncle had an '84 K20 with a 305 4bbl and an SM465, got 10/13 city highway mpg, and I have an 87 tbi 350/sm465 and i get 12/15 city highway, alot of it is driver but it seems to better than carbs.... than again it could depend on how the carb is tuned.... __________________ 1982 K10 SWB 1987 V20 - Sold - Doh!