What is it at .050

Sounds like your cams are BIGGER than stock hp 500 efi cams:
http://www.offshoreonly.com/forums/g...cam-specs.html
For the record EFI
292*/298* @ .004"
230*/236* @ .050"
.352"/.359" lobe
.598"/.610" valve
114* LSA
109* ICL
119* ECL
But if your duraration is anywhere close to only 230/236 at .050 it is killing your hp potential. I also gotta imagine your heads fklow well past .700 lift so your leaving alot on the table with .612/.631 lift. If your looking for 700+ hp its going to take a cam that is a little bigger, your boat wont idle as smooth, low or strong but thats the price you pay. Bob Madera marine kinetics 585-654-8583 is a great cam guy as far as specing a cam that does what you want, Smitty

As others have recommend.......call Bob Madara @ Marine Kenetics and have him spec your cam for you. You will NOT be disappointed! He is awesome to work with and is extreamly knowledgeable! I can also speak from personal experience as I have one ofhis cam's in my motor.....and couldn't be happier!

think i will just leave it like this . coming from a blown 557 to a n/a 540 going to feel like im dragin the achor.