View Single Post
  #5  
Old September 27th, 2018, 03:54 AM
BillT BillT is offline
Senior Member
 
Join Date: Jan 2013
Location: Moneta, VA
Truck: Drove and Owned Many
Posts: 301
Rep Power: 151
BillT is on a distinguished road
Default Re: Towing with a 305

Quote:
Originally Posted by jagarra View Post
Wonder how worse the mileage will get?
I "Super-Tuned" my 305 once before a long trip and got 15 1/2 MPG. That is pretty good for engines known to "drink". When towing the Chevelle, I did not figure it, but I don't remember the Mileage dropping a whole lot.
__________________
Drove and owned many, but some of the more interesting ones were:

-'60 GMC 2500 Dump, 305 V-6
-'62 GMC 4000 Flatbed, 305 V-6
-'62 GMC 6500 Flatbed Dump, 478 V-6
-'67 GMC 7500 Box, 6V-53 Detroit
-'71 GMC 9500 Flatbed Dump, 637 V-8
Reply With Quote