To Much Cam?

Looking at your specs and making a few assumptions, your static compression is around 10.65 and your dynamic around 7.69 assuming an intake closing point of 60 degrees and 4.04 x .028 gasket - major assumptions though...

I went looking at Lunati's site and did not find a 274H cam with an intake closing point of 60, but their 60402 voodoo cam looks like a good driver or the 60403 if your valve train can handle the lift

Using either of those 2 voodoo cams takes your dynamic compression to around 9.0 - but with .028 quench you should be good to go on 91 octane

Throw some 3.23-3.73 gears in it and call it good - I tend to err on the conservative side