With the springs, I figured after lash the lift was almost identicle to a stock 340. Lifters are cheap, FREE! I already have the cam, a set of 273 lifters, and the new 340 springs. I have no money to spend on this cam swap so if I can't do it free then I can't do it. I was really just looking to spice up the MPG motor before I sell it, make it a little more atractive. Also IF these things will work together would this cam be OK with a factory high stall converter?