Gas Mileage query Holley 318
Jason I have a VJ Charger with 410 in it ! has a fairly big roller cam,11 to 1 forged pistons and trick flow heads on it . engine puts out 425 rear wheel HP , so about 530 or so flywheel. Has a five speed TKO box in it and 3.91 gears. Does about 2700rpm @ 110 kph. Last trip to Chryslers on the Murray I got 21 mpg out of it. I also have two 318 cars. A VJ charger 770 with 318 (stock) and a CM Regal SE with a recond 318 with edelbrock heads, twin 2 1/2 exhasts and pacemaker headers. They seem to get the same fuel economy as the 410.
Our fuel by the way in premium is 98 octane but is rated different to your US fuels, also our imperial gallon is a little larger than the US gallon and the pumps say the unleaded fuel can contain up to 5 % of ethanol. Hope this helps.
