I know theres different factors that would change these numbers, but does anyone know the approximate gasmileage that this engine (355) with an alderbrock 650 4 barrel carburetor would get? It is in a 1980 Monte Carlo. Also what type of gasoline would be needed Reg. Plus, Premium?
2007-01-21 01:23:09 · 7 answers · asked by Anonymous in Cars & Transportation ➔ Car Makes ➔ Chevrolet
the gear in the rearend is a 2:42
2007-01-22 12:56:33 · update #1
going by the specs i have from workshop based on similar engines approx 18mile to the gallon with 5 speed box 2.75 diff on highway running
2007-01-21 01:28:10 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Depends on the transmission / rear end combination. It will likely fall between 13-18 mpg. Type of gas will be determined by compression. If you are using stock style pistons I would break it in on plus then try reg.
2007-01-21 09:28:36 · answer #2 · answered by mad_mav70 6 · 0⤊ 0⤋
You will probaly get 8-10 in the city and 14-16 tops on the highway....
2007-01-21 20:44:38 · answer #3 · answered by Anonymous · 0⤊ 0⤋
3:90 gears with 350 chevy vs 355 gear with 350chevy which one is better on gas?
2013-12-05 20:51:58 · answer #4 · answered by funonthewater 1 · 0⤊ 0⤋
There are a ton of factors to consider in this, but with conservative gears (and a light foot), you could get anywhere between 12-20 mpg.
2007-01-22 15:38:26 · answer #5 · answered by JC 3 · 0⤊ 0⤋
it all depends on how much you open up the four barrell, rear end ratio. other than that maybe 13 to 15. Id burn regular gas, my 75 chevy truck has a 350 and it runs fine on regular.
2007-01-21 11:29:33 · answer #6 · answered by wheels47012 3 · 0⤊ 0⤋
yeah aut 8 to 10 in the city 12 on highway..
2007-01-21 09:26:04 · answer #7 · answered by Mudd 3 · 0⤊ 0⤋