Originally posted by SFU
I have a '69 Mustang with a straight 6. Would it be worth putting a 4 barrel carb in it to boost the power? Would it make a significant difference without destroying the engine? Also, does 'octaine boost' fluid actually work and is it harmful to the engine?

Thanks.
the 4 barrel on the stock 6 would be a little overkill, no a lot of overkill. rpms destroy motors, not carb. it will help some under certain situations. it probably wont help you, but try it, it wont hurt anything.