HOW FAST WITH W2's

i have got a 360 4.100 bore going to run stock crank. also have je pistons but they are flat tops weigh 400 grams. closed chamber w2's with t&d rockers. i was going to run a soild .620 lift to keep from bushing the lifter bores. i have got a cam dynamics roller .640 lift. hoping for about the same results in a 2900lb dart.