Well I tried one more set. I drilled out all four holes two drill bit sizes bigger than stock. Not only would they not fit on the set screws but I put factory valve covers on and they fit except for hitting the roller rockers. I am sucking it up and buying the Edelbrock. Don’t even try the procomp or trans dapt brand they simply do not fit
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468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior.
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