Hi Energy vs Pro Magnum HFT lifters

Gotcha - I got my brands crossed...lol. Same basic idea tho: the standard recommended lifters for most are not anti-pump up design. The Pro Magnums are the anti-pump up that would be recommended for a larger and/or faster rate of lift Comp. With them you need the adjustable rockers but they should add rpm over the 822s depending on the rest of the combo. Both are very sensitive to lifter preload too - so that's something to check too - you may be losing rpm by not having enough preload on the 822 lifter.