Restoring a 340 need advice

Hey all, I am in the process of trying to restore my mothers 67 Barracuda that had some unfortunate events. All i know is it possibly had a head gasket issue on a fairly low mile rebuild. It was than attempted to be fixed by a somewhat known local guy and grandpa, first start it swapped fluids immediately. Car than sat for 6-7 years outside and now the paint and alot has gone to crap. I decided to take the car to my house and get it running again. I have pulled the engine, removed the heads dissasembled and pressure tested for leaks,cracks. They look to be good. With talking to my mom about what she would like out of the car i want to upgrade the whole valve train to a roller and a more lopy sounding Cam. I do not really have a high horsepower goal. I am looking for a well behaved street driveable car that sounds great and can let some eagles out from time to time.
The car has a 340
block-2780930-340-2
Heads -3418915A - looks to be the 2.02/1.6 valves
Intake manifold Edelbrock ld340
exhaust manifolds stock cast
Carb Carter AFB looks to be identical to edelbrock 1406/#9906
not sure on existing cam as i have not pulled out. valve springs and what not will be replaced.
I am looking for tips or a cam kit with springs that will be a good fit to upgrade to Roller with adjustable rockers. Pistons have reliefs for valves. Any advice would be appreciated

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