A B16 head is mostly said to generally be better for forced induction as it has much better movement figures when compared to the B18. Having said that, a B18 head is often ported and polished to realize very similar stream figures as one from a B16. The DOHC VTEC https://b16engineandtransmissionf26936.ssnblog.com/29086182/5-essential-elements-for-b16a2