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turbo350 · 07-06-2012, 08:24 AM

For comparison, had an '87 g20 conversion van 350 tbi 700r4. Between myself and the original owner (who took it all over the country when new) never got better than 13 mpg ever and it was maintained meticulously.

07-06-2012, 08:24 AM	#5
turbo350 Registered User Join Date: Aug 2005 Location: Twin Cities, MN Posts: 316	Re: Mpg-bbc vs sbc Suburban For comparison, had an '87 g20 conversion van 350 tbi 700r4. Between myself and the original owner (who took it all over the country when new) never got better than 13 mpg ever and it was maintained meticulously.