suggestions for my 340?

intake? stocker. so I dont know lol.

engine bay...


gearing I can check once I can jack it up and see manually check (previous owner was unsure). it runs about 3500rpm doing appx 67mph (speedo jiggles a little) down the highway in 3rd. tire height in rear is 215/70/14 or 25.85". the sites online where I can input rpm, speed and tire height say it is a 3.9x gear.

automatic

Im assuming stock compression ratio for a 73 340 motor. I BELIEVE that is 8.8:1 roughly. It runs just fine on 87 octane.

how bad are the summit headers regarding installation etc? I DO have power steering. Will they still fit?

what does a complete 'cam kit' consist of? Im assuming rockers, lifters, springs, cam?

Thank you Rumblefish for all the assistance thus far!