Good Cam for a 1.8L engine
You have the best intake cam produced for stock engines. If you want to go with performance cams, you can contact CAT cams, they are supposed to make a set for the beta. I believe that Hwrang makes cams that can be purchased through HP.com, and take a look at Kspec. You will, however, pay insane amounts of money for aftermarket cams. Furthermore, you will need some type of fuel management for the wild aftermarket cams out there.
I wouldn't worry about getting cams until you get everything else done for NA. If you plan on going turbo, don't even bother, cams designed for NA will not work well with a turbo setup because the overlap needed for NA cams would allow the fuel and air mixture in the cylinder to be pushed right on by. Turbo cams need high valve lift and short duration, where as NA cams need high lift and long duration. The stock beta cam is just fine for turbo setups.
I wouldn't worry about getting cams until you get everything else done for NA. If you plan on going turbo, don't even bother, cams designed for NA will not work well with a turbo setup because the overlap needed for NA cams would allow the fuel and air mixture in the cylinder to be pushed right on by. Turbo cams need high valve lift and short duration, where as NA cams need high lift and long duration. The stock beta cam is just fine for turbo setups.


