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Hey guys! How much horse power can the mopar performance production street hemi blocks handle?

I've made around 800 HP N/A with them (Mopar replacement Hemi block) with no bad results, the key is it a race motor or a street and strip motor and who is driving and tuning it I have one with a blower on it making over 900 HP on pump gas with 7 lbs of boost running on the streets now, not sure how many miles are on it as of now It is in the car on the cover of the Feb. 2014 Mopar Action magazine. BTW, it is a 484 C.I. motor, not what the mag writer wrote

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)