427 cylinder head question

[turbojet427]

I'm building a street/strip 427, but it will see alot more street time than race time. It is a 11.5:1 compression with 304/314 .710 soild roller cam. I have a nice set of 840 heads that were ported, preped, and polished by Brandywine cylinder heads that I was going to use. They have 2.25 intake and 1.88 exhaust valves. I'm being told that the heads are too much for my application, which is shocking to me. Has anyone every used a set of race preped 840s on a street/strip motor? Would anyone have a head recommendation?