Anything is better than the factory iron dual plane 2 barrel 318 smog intake. Replacing that boat anchor with any dual plane four barrel intake is a night and day improvement. I understand all too well about hefting a cast iron intake.
The grills in the F body are fragile as an eggshell! But the grill in this F body is already broke in half and missing a chunk!!! Not easy leaning over and doing any intake there! ha
Any decent 4 bbl will be a great improvement even in this smogger.
