Hey coal,
Everybody has their own way of doing things, so take all these opinions with a grain of salt. I am going with the Offenhauser intake, A 390cfm Holley, and a set of long tubular headers. There is no way my ears can tell the difference between one type of header and another. I am also building my own cold air box to feed the Holley. More important than carb and headers will be switching out your old distributor for a '75 or later HEI! The HEI makes a huge difference in starting, idle, and overall performance.
Best wishes,
Les
