Hey Thanks Pat & Tech.
The car is a 4 speed manual trans, would the 254/260 .269/629 cl108 work ok with the 373 gear? Isky cam with red zone lifters? I would like to run the stock valve covers with roller rockers, I have done this before using Crane gold rockers, I had to remove the drippers from the valve covers and use a thicker gasket. Is there a brand of roller rockers that fit better or are they all about the same?

Thanks again for the Help.