90 degree turn at the base. another 90 towards the head flange on the front and back cylinders and another 90 to the valves. there is quite a difference between the end plugs and the middle ones so I`m going to raise carb base to allow only one soft radius to the head ports with a bigger plenum under the carbs instead of crippling the motor by opening up the gap on the rockers on 3&4
