A B16 head is usually stated for being much better for compelled induction as it has superior stream figures when compared to the B18. Even so, a B18 head might be ported and polished to attain identical flow figures as a single from a B16. Nov 23, 2007 #11 hey https://b16a225815.educationalimpactblog.com/49040471/5-essential-elements-for-b16a2