312 w/502 415hp
#2
21 and 42 footers
Platinum Member
Re: 312 w/502 415hp
I have a 98 312 with 502's (stock exhaust). As far as I know all of these boats have 1.65 bravo drives and I run 30 pitch 4 blade bravos. speedo says 77 but the GPS usually shows 72-73 at 5000 rpms. The bottom of my boat is OK but not perfect. I understand cupping props, blueprinting the bottom, and light load the boats will hit 80 with these engines.