For around $600-700 you could upgrade to a Holley 1850 600 CFM 4 BBL and a Clifford aluminum intake and a Comp Cam with a ton more lift and duration . Compare it to the $1000 plus price tag of the Howel or even the ridiculous Mopar system and you will come way out ahead . Look at the airflow of the fuel injection throttle body VS. the 600 Holley , not even close . Compare 175 HP at the flywheel of a Mopar FI setup , 145 and the wheels to 296 HP and 324 LB FT at the rear wheels . That is with my new ported 4.0 head on 4.2 block +.040 forged pistons Comp Cam Extreme Energy cam and so on . I tricked out my motor for the price of your Howel and Mopar FI kits and make way more power .
When it doubt , PUNCH IT !!