yes, the 440source heads flow as well as edelbrock RPM heads, so they are 500+ Hp capable out of the box, they look almost identical to cast iron heads, and they have straight spark plugs unlike the eddys.

that intake is a low rise dual plane intake, and can easily pass for an original, so yes, that combo could be done and look stock on the outside.

a cheaper route for some simple stop light fun would be some high compression pistons, and a decent cam, factory iron heads will support 450-500 hp pretty easily, and would be a lot cheaper than a big dollar, aluminum headed stroker motor.

but, a stock stroke 383 running on pump gas would probably max out at 400-450 hp, and still be a fun street cruiser