"what are the plans for the car? how much power do you want to make? what kind of mileage are you hoping for?"

since I want it for highway use, I'd like a motor that has the power down lower..so prob a stroked 318 or 360 would be best(?). I'd like milege to be reasonable, at least 15 mpg.
Thanks for the info on the magnum roller motor I hadnt considered the newer small blocks...but that makes sense.