Originally, no. Lead, in fuel, is used to lubricate the valves. If you take an older cylinder head, and put hardened valve seats in it, you will be fine to run the unleaded. However, if you put lead, into an un-leaded motor, you will ruin your catalitic converter. The older cars don't so much need lead, as they do octane. That would be like the proof on liquor, I guess. It pertains to potency. The older cars had high compression, and require more BANG than the newer with lower compression.
It burns cleaner than leaded fuel so there is less polution.
You forgot to add: NASCAR race cars also have carbs. Fuel injection systems simply do not have the power or top speed. Most of the "muscle cars" from the 70's (and other cars), all had Carbs back then.
leaded
Cars were, for the most part larger and less fuel efficent than they are today. There were a few small cars but they did not sell well. The late 60s was considered the Muscle Car era.
Lagging sales and interest in muscle cars, more of a focus on fuel efficient cars because of foreign competitors with better offerings in compact car segment
Muscle Cars where defined as intermediate/mid-size cars with large cubic inch engines in the early/mid 60's. A sub category later on, "Pony cars"- were small/compact if u like, cars with high performance small blocks or big blocks. A muscle car, put simply, is a car with high horsepower and little technology. Muscle cars really started coming around in the mid 60's with cars like the Chevy Corvette, Chevy Camaro, Pontiac GTO, Dodge Charger, and Ford Mustang. Muscle cars are typically coupes that have big block V8's. The difference between a muscle car of the 60's-70's and a high powered performance car of today is technology. Today's cars use lightweight materials, advanced fuel and air delivery, advanced suspension, and are optimized by computers. A muscle car is delivers air and fuel through a carburetor which allowed for very high horsepower ratings but were very inefficient. They were also often made with steel bodies and engine blocks, though some muscle cars yielded aluminum blocks and/or heads. The appeal of the muscle car was raw power, not refined power.
There are a few ways to do this:Don't drive them (while the answer seems silly these cars were intended for lots of horsepower and speed; for instance a stock 1968 Camaro with a V8 (non-high performance) came from the factory with 300 horsepower)Replace the drive train with modernized high performance systems (Fuel Injection and its related controls, Overdrive transmissions, etc).
There are many products that can be used as fuel for cars. These products are more natural and better for the environment than fuel. Yeast can be used to produce fuel for cars by breaking it down.
in water factories and to fuel cars in water factories and to fuel cars
Modern fuel injected cars, no.
Diesel is a fuel that is used in cars and stored in tanks. Gasoline / Petrol is another fuel that is used in cars and stored in tanks.
Yes it does, like all fuel injected cars. It is in your cars fuel tank, which is likely accessed in your trunk. Most modern cars run on about 45 PSI of fuel pressure.