1) why wouldnt he like the bigger valves? when I bought new heads for my 400 I was looking for the bigger valves... 2) I didnt install roller rockers ,but went with 1.65, and my guy who also shaved some off the heads to get CC around 90 told me I needed to enlarge to push rod holes ,and get new push rods..... doesnt sound like a good engine builder there
