ENGINE DEBATE: 327 vs. 283

I'm presently weighing two options for the roadster's engine. I have a balanced and blueprinted, roller-cammed 327 that is way overbuilt for my 29 which will likely weight all of 2300 lbs. The second option is a completely rebuilt '61 283 corvette engine built to stock specs, which is rated at 245 hp. Either way, it'll be dressed out in period goodies, the transmission will be a Muncie M20 4-speed and a 9" Detroit Locker with 3.50 gears will bring up the rear.