I think my engine build for my '64 Fairlane will be fairly mild. I am just looking for it to be a nice cruiser, with snappy pickup and decent fuel economy. It has a 3.00 rear and an C-4.

For the engine I am thinking Performer intake, 500-600 carb, 289 HiPo exhaust manifolds, and an XE256 cam - 256/268 212/218@.050 477/484 110 degrees separation.

My question is this: With this combo, would I see a big benefit with Windsor Jr. heads as opposed to just rebuilding the stock 2V heads? In other words, is the additional cost justified by the benefits?