wondering if Ford Z304 heads will fit on my windsor style 351 with shorty bbk headers with no major issues

said on order sheet may require custom headers due to raised exhaust ports

 

I would think you will need a header to fit the head some thing in the same line as for a TFS high port head.

 

They should fit. You may have to tweak a few things. Mac made a set of 351w shorties that were supposed to fit a tfs high port head on a 351w but, I used hookers in place of them on the car and never had issues.