Hello I am new here, I own a 1980 Chevy G10 van and I dumped out the 350 engine that had a 4 barrel carb and replaced it with a 1988 292 with the idea of getting better gas milage closer to a what you would expect from a mini van say around 20 MPG.
Can someone tell me what I should be getting for MPG,? I have a hard time knowing for sure what its getting because my odometer is busted, its seem to be around 18 would this figure be correct.? I have a 1969 monoget one barrel carb on it with manual coke and 308 rear end hooked up to a 350 turbo non lock up transmission.
Also would like to know too what the MPG difference is in running say a 1964 rodchester B carb compared to the newer monojet I have on there now.?
I also want to know what the differce is in MPG running a 250 in my van compared to a 292 if someone knows.? I much prefere the 292 but everyone I talked to say the 292 is very bad on fuel I dont know if there is a big differnce or not between the two engines in my Van aplication, I do know that the 292 was very rare to find in G vans I dont know why GM prefered to put 250 engines in vans more between 1971 and 1984.
I notice that since the gas price hike that there have been hardly any 292s show up on E-bay for sale.
