Yeah, the later blocks are MUCH better than the early ones.
The reason for a larger intake vs exhaust duration is because like 80% of the turbo setups out there on the street are designed for very quick boost - LOTS of backpressure. I went the other way, and built this as a low backpressure, high rpm beast. So I can get away with more exhaust vs intake duration.
Always remember, look at your engine as a SYSTEM, and make sure all parts complement each other!
The reason for a larger intake vs exhaust duration is because like 80% of the turbo setups out there on the street are designed for very quick boost - LOTS of backpressure. I went the other way, and built this as a low backpressure, high rpm beast. So I can get away with more exhaust vs intake duration.
Always remember, look at your engine as a SYSTEM, and make sure all parts complement each other!
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