Here is one more tip: Do not "permanently" install the adapter until you have the headers on there. Put the filter on and make sure the whole assembly is clocked at the right angle to clear the headers and also allow the filter to be removed and replaced. You might also need to use a very short filter, like Wix 51085 or even 51335.
Oil Filters:
WIX Baldwin Length
51515
B2 5-13/32
51068 B233 4-3/8
51085 B34 3-7/8
51335 B7221 2-9/16