Twin Turbo 1971 Scamp Project
I'm a big toyota/mopar fan. This is a great idea for a daily driver. People don't get turbos and boost around here.
Let me clue you non turbo guys in. You can cruise around without getting into boost, you need a considerable amount of load on the engine to build boost. you can cruise around all day long without getting into boost. So it is like an NA engine cruisin. these toyota motors will get way better mpgs than any LA, magnum or slant. So out of boost you've got a motor that gets great mpgs.
Now throw some boost at that sucker and you've got some power. You can work these up just as much as any mopar v8. But i think 500 might be a bit much for a reliable street motor. I think 350-400 will be easier, cheaper and more reliable. Do what you wish I'm just stating what i think here.
IMHO, gas mileage/reliability engine ill preach toyota ALLLL DAYYYY LONNGGG. old iron hp/reliability ill preach mopar all day long.