Rebuilding my xr3i this year somtime and was looking at this on burton power http://www.burtonpower.com/parts-by-.../kccvh22k.html

also this
http://www.burtonpower.com/parts-by-...cvh/cv153.html


Will these suit my engine, 1.6 8v efi

Just want rid of the tapping

Also whats the advantage of a zetec bottom end?