compression with 274cam

heck no haha its not a dailey driver its a weekened warrior i have the 274 cam
but i asked whats the best compression to run with this cam because i can get higher octane fuel by making it

Well then if money is not the object I would go around 11:1 static but you need at least cometic head gaskets and around 100 octane points depending on gears car weight etc as others mention. Also altitude makes a huge differance too. Closer to sea level requires more octane due to thicker air IE has more O2 in it.

For more wallet freindly I would stay no more than 10:1 may just need a little booster, but you do not want to have to back the timing way back to make it live on poor full, this will result is less power than if you ran more spark advance and less compression. it is a balancing act. Also iron VS aluminum, heads make a diff to, but that is more of another topic..

PS I did this against many reccomendations years ago when 100octane wa still at the pump, but I needed 105-108 to make a 12.5:1 motor live on the street, it got real old real fast, and that was gas was .50 a gallon.

good luck man!