A B16 head is normally mentioned to be much better for pressured induction as it's got better circulation figures than the B18. However, a B18 head can be ported and polished to attain equivalent circulation figures as just one from the B16. B-series were being the main engines to utilize https://alexisglpsy.pointblog.net/the-fact-about-b16-crate-engine-that-no-one-is-suggesting-71100088