single best thing about the 307 / 4v is the noise they make if you flip the air cleaner lid. They work, but thats really about the most that can be said for them. That GM CCC system (the electronic q-jet) gets really shitty when the parts and vacuum lines start to fail, or when people tinker with it without knowing what they are doing. Kind of like CFI actually.
A 350 or a 403 swaps right in. Same external dimensions. The exhaust on those Olds engines has to be the most idiotic thing I've ever seen though. Instead of a Y pipe like a normal V8, it has a crossover pipe that connects one side to the other, then a single pipe out to the rest of the exhaust so 2 banks worth of gas are flowing through one manifold. I'm not a fluid dynamics expert but just looking at the turns and the sizes of the passages that has to be a massive restriction.
A 350 or a 403 swaps right in. Same external dimensions. The exhaust on those Olds engines has to be the most idiotic thing I've ever seen though. Instead of a Y pipe like a normal V8, it has a crossover pipe that connects one side to the other, then a single pipe out to the rest of the exhaust so 2 banks worth of gas are flowing through one manifold. I'm not a fluid dynamics expert but just looking at the turns and the sizes of the passages that has to be a massive restriction.
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