i know most forged engines are running meth kits... but are meth kits only for supercharged/turbocharged engines.. ? can you run a meth kit on a regular engine?? since they spray thru the intake??

 

From what I have read meth injection has relatively little value NA. There is no compressor to heat up the intake charge and NA does not do well tuned super rich. Just put in injectors sized for your fuel demands and you should be good to go. Race gas for the track if required.

 

I have heard guys running high comression (11+) spraying at very low vacumn (any heavy load) for the octane.

Rick