TT 5.7 hemi in 75 duster

cant give any good answers but that sounds like something that will run very hard when done!
around here there is a sbc powered merceds 190E with twin scania turbos on something that had just ported smogheads wish are nowhere near the headflow a new hemi has and that thing made enormus power on E85 running low 9s with a car that where never able to handle half the power..

25-30pounds on a modern hemi should be far above 1000hp