Originally Posted by 62pan

The heads are from a 03 SE103 kit, The front # 16965-03A & rear is 16971-03A these have a hemispherical combustion chamber just like the old shovels heads did. I can't find the paper work right now but they are set up to take a pretty high lift cam the way they came in the kit, Had to mill the rocker box and cover to clear the springs and the roller rockers. I think the plus just means that they already have the manual compression releases, That was a comment I overheard from the fella that did the clean up on them. Mirror polished the exhaust ports - polished the combustion chambers {they were powder coated} - and swirl finished the intake ports {not RUFF but not smooth ether. The reason I went with the 255's is I have a few friends running them and they love the low end pull that they have and still reasonable fuel mileage, {low to mid 40's loaded up} Just want more torque than the 88" had. What cams are you thinking of for a set up like this ???

Originally Posted by Dead_Reckoning

I have and 03 FLHRSEI2 and I am thinking Dave Mackie Enginmeering TC590 CAMs with headwork to match or Woods 555s or TW-6. I believe the Compression Chamber is 98ccs, which as someone else said be a bit large.
Also the Throttlebody is 45mm which may beed to be bored to 48mm.

My stock 03 FLHRSEI2 with just a SE Stage 1 AC and a pC III RW dynoed at TQ=90.2 and HP=88.5 in 5th Gear.
I am looking for 105/110 to 105/110 or more for my next move,