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Old 10-21-2020, 07:48 AM   #3
b454rat
Senior Member
 
Join Date: May 2004
Location: Binghamton, NY
Posts: 3,453
Re: 1974-454 What "Mark" do I have?

If it's from a 74 good chances it has 049 or 781s, those are best heads you could get for a street motor, AKA junkyard heads. I had each, last one was over 400 horse easy. I wouldn't worry too much bout putting in a bigger cam with whatever head, use matching springs and run it.
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