my current set up is a 350 2 bbl th350. I want to install a new intake, carb headers new duals with turbo mufflers. thought about roller rockers but not sure. i just want a good streeter not looking to win nhra nationals. any other suggestions would help. i have a 327/365 in moth balls i thinking of rebuilding but for the price of a rebuild i can order a crate 350/350 with a warranty.

sounds good..but I would go with a better ignition/re curve before roller rockers

Jim's right. recurve the distributor and forget the roller rockers. They really won't help any.