ALERT!! SOUND THE ALARM!!..
I put 340 springs on my 273 and needed to grind a little clearance. Now, the springs I got were advertised as 340 springs but they were pretty fat and the machine made them work. Something I need to change. Probably a 901 Comp would work fine although Isky recommends their dual springs for that cam. Just a mild E 4 grind.
