I am putting together a ZZ502 and am going with an Edlebrock intake.

I checked the gaskets to the head and they match up real close, but when I matched them to the intake the intake manifold ports are much smaller.

Should I grind out the intake manifold to match the gaskets?

This is not a race car and will be limited to 6000 rpm.

Car is a 1967 Nova with Richmond 6 speed and 3.73 rear gears.

Thanks for your advise!!!