" From: Russell Neyhart <rtneyhart@xxxxxxxxxxxxx> " " " Is the 4.0 liter really that much "better" than the 258? Would anyone " in "normal" driving even notice? For instance, I have a Howell EFI " setup (not installed yet) so someday the BBD setup will be a nice " conversation piece in my workshop, with the EFI setup would there be " much if any real difference between the two engines, performance or " economy wise? I have a relatively low mileage engine for the year and " don't see any reason why I'd want to swap it for a 4.0 for regular duty " just putting around town and going to shows. If there is a thread that " has discussed this already... please point the way! dunno about the howell, but the 258 with the mopar efi kit was rated 160-170 hp. that makes the jump to 4.0 power a lot smaller and the 4.0's cam doesn't have the low-rpm power the 258's does. if you needed a new engine the 4.0 would be a reasonable choice, but i don't think it'd be worth scrapping what you already have. ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list