Intake manifold science has always fascinated hot rodders, probably because it's relatively easy and inexpensive to experiment with them. An intake that doesn't work on a particular combination is ...

Given the amount of time and effort that goes into the design of a factory intake manifold, it's not surprising that it's sometimes difficult to improve upon the stock induction system. Stock ...

Horse Sense:The more we test the GT-40 intake manifold, the more impressed we are. It's well over 15 years old and it's still being compared to the most contemporary hot-rod intakes. Not many cams, ...