Ive got a D4B on a 318 and this 318 has more torque and throttle response than any other 318 I've ever driven. Great intake. It's low-mid RPM where this intake shines at high RPM it's no big deal.

Take care,
Rick
68 Coronet R/T 440 & 68 Charger 528 Hemi,and 5 Challengers! 6 cyl, 318, 360, 383, 451