What would the diff be between a 67 stock hi-rise vs the rpm or stealth? Since it is a "hi-perf" hi-rise is the pattern of the runners diff enough to make it worth swappin' out?

i know the rpm is worth some over the stock high rise, but the performer is not worth nothing over the stock high rise,stealth never tried at the track.

Thank you double D. graemlins/thumbsup.gif