1964 mustang question?
200 what, HP? yes, KPH? maybe, MPH? NO..
and even though it was made in 64, it's still a 1965..
added: It's a brick! so it wouldn't go 200 mph if you had 1,000 HP.. it will lift off and fly first!
plus with with suspension it has you won't be able to keep it on the road at 120 mph..
the stock six, does 90 to 95 at 4100 rpm's with 3.20 rear axle...depending on tire size..
the stock V8 does 115 to 125 depending on 2v or 4v carb with a 3.00 axle..