Cast iron intakes were less expensive...February 10 2018 at 11:19 PM
|Jeff H. (Login wsu0702)|
Response to 29 lb vs 81 lb
So for mass production (i.e. 428CJ) it was the better choice. 428PI's were very low volume. BTW the cast iron 428CJ intake out-performed the aluminum 428PI in Jay Brown's intake comparison testing.