408 stroker oil pump

I was wondering what I need for an oil pump for my 408 stroker. The HV one I have will not clear the main stud bolts. Wondering what I am looking for. Also, the pickup tube attaches to one of the main bolts. Do I need a stud kit for that, or can it be placed under the bolt (between the bolt and the main cap). Not sure how this will affect alignment. Thanks.

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