I saw an old post before about the ported 2.5 heads vs. 3L heads. I was trying to do the search to find that thread but my choice of search words didn't come up with the topic I was looking for. I know it is there. I read it before. I'm trying to find out if anyone ever did the ported 3L head vs. ported 2.5 head test. I know it was mentioned. I also want to find out if the 3L head can be milled to yield the 11:1 compression if it does flow better.


98 SE Sport. custom catback, Intrax springs, 3L, 3L valves, APEXi S-AFC, 24# injectors. Other cars: 72 Challenger 360 motor 727 trans (used for parts) 73 Challenger 340 motor 727 trans 15.60 1/4 with bad miss and clogged fuel filter.