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Ryan Hubbard · 09-09-2013, 11:43 PM

I don't have an LS engine but I am running a blown 350 with a 4l80e and am running a 3.55 rear gear with 29" tires and I find it a great combo. I am averaging 16 mpg doing 75-80 mph or sitting in traffic in So Cal.

09-09-2013, 11:43 PM	#6
Ryan Hubbard Registered User Join Date: Aug 2007 Location: Mission Viejo, CA Posts: 288	Re: what gears??? I don't have an LS engine but I am running a blown 350 with a 4l80e and am running a 3.55 rear gear with 29" tires and I find it a great combo. I am averaging 16 mpg doing 75-80 mph or sitting in traffic in So Cal.