Performance Questions 225 vs. 360
Call me crazy, but I swapped out my 225/904 for a 340/ 833 and kind of regret it. I miss filling up the tank with cheapo 87 octane and getting 23 MPG. Now I dump in 94 and a can of lead and get 12MPG.
Mileage depends on a lot of things.
Especially driving habits the bigger the engine gets. If your foot is in it, yeah mileage is gonna suck. What cam, carb, and gear ratio are you running? That's pretty thirsty.
I get 17-18 with my magnum 5.9 with a hot cam, on cheapo 87. Desktop dyno says 380 HP/TQ. I plan on installing O/D, which should net a comfy 22-24 highway, maybe more.
Slant 6 vs 360? Bang for buck 360 every time, depending on your goal HP. I love my Magnum, got it for $300, got about $1300 into it with all said and done. Rebuild kit, heads, headers, cam regrind, intake, fuel pump, oil pan, and rebuilt a Quadrajet for it. Looking back I would have just resealed it and ran it. No bore wear at 190k, thanks to modern rings,
and I've got a serpentine belt. ;)
