Greetings,

I am building up a mild 5.2L Magnum for my '73 Duster.

The block is bored 0.30 over and I'm using a hotter cam (216 intake/224 exhaust @ 0.05, 0.506 lift) and will be running the usual bolt-ons (4-bbl and appropriate intake, headers). My horsepower goal is 300+

My question is this - I found a set of Harland-Sharp roller rockers that are a bolt-on replacement for the stock rollers - are they worth the expense?

Any info would be appreciated.