The 69 heads are fair, some things to consider though? They will need harden valve seats to run unlead fuel. The pushrods should be fine same length as stock 302.
Valve job and milling the heads you will have a good $400.00 into them plus the orginal price paid for the heads. For some more coins there are many good aftermark heads available that will outflow these without mods and have a major manufactures warranty to boot. Plus they will be emissions legal if needed. Just my thought though, I certainlky don't know all of the answers, maybe they have already been upgraded, with harden seats and new guides and have be milled then maybe..
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