The Lunati is a much faster ramp than the comp and has a tighter LSA.
The Lunati grind is pretty damn close to what I run. You'll need the springs they want, you have to machine the spring pockets and trim the guides down.
For either of those cams you will need an actual, measured 10.5:1 which means the piston should be out of the hole .040 or a bit more. You can't have a zero deck and get the compression where you need it.
A minimum of 1.75 headers. The 650 is a bit small, especially on a dual plane intake. A 4K converter will be your best friend.
If you get it right, you'll have a hard time making it slower than low 12's if you get it to hook.
