340/drivetrain build advice

If you switch to a clutch (4spd manual) then A Centerforce clutch set up is what you want. Easy on the knees and strong on the holding power.

I like Dartmans thinking with a 4 inch stroke roller cammed EFI power plant.
If you want to keep the 340 a 340, then your looking at deciding on what RPM range you wanna cruise in or at. This is a helping hand in cam selection and gear ratio.

If I ask what power level (HP) your looking for, could you target it?
If not, how about a target time slip number like, you want a 12 second ride or a 11 second ride.