i know a kind of generel rule for the above is the latter is better for top end
and the other for torque, but are they really that benificial?
I know someone who went from a standard cast type 4>2>1 (non-vaux) to a tubular 4>1
and said midrange pull was noticibly better, would this be down to the better flow of the tubular construction,
i.e. would one made in a simillar way but 4>2>1 be better again for torque?
or is this typical of swoping to 4>1?