1968 912 porsche?
 

i have a 1968 912 porsche the handling is great with the new supention on it what are the best upgrades Launch ICarScan i could get to make it get up to or over 300hp my motor now is is about 140 with the minor stuff on it mostly just the carbs what

could i add tuurbo,cold air intake,or new ecu is any of that possable?