I have searched the forum for what cam people are using with a 347, could't find anything. If you are running a 347, I would appreciate your feedback..I am leaning to the comp cams 280H.
I plan on using roller tappets, I am running a 1406 edelbrock carb, edelbrock rpm performer heads, intake, and cam. I switched from 3:50's to the 3:89 after the first track event. I am using a T5Z speed,,which I hope in the end will hold up..
My 347 is going to use a 236/.540" lift hydraulic flat tappet cam. It will be slightly larger on the exhaust side. I'd like to go to a solid roller one day, but funds did not allow for this build.
The 280H cam isn't a bad choice for that combo but it isn't a roller cam. I'd also try and get a little more lift. If you're using roller tappets, the 274HR looks nice if you have the P/V clearence and valve springs for it.
I'm not running a stroker but I do have a roller cam. Here are some sugestion for power in 2,000 - 5,500 RPM with a 6,200 RPM redline. (assuming stable valve train) The below table lost its formating but I hope you get the idea
Advertised Duration around 224 - 230
Lift around .510
LAC around 112