Quote:

Quote:

We picked up 30rwhp and 28rwtq from an almost bone stock 392 with only ported 6.4 heads.

6.4 is a good number for hemi's, with the apaches or nor.




Are the 6.4 heads significantly better than the 6.1? How about the Apache?



Depending on application.
6.4 heads are Apache heads.
IMO the 6.4 is too big but I'm no expert. Matt