273 commando cam

hi, I've used the Isky E4 on two of my 273 motors. it drops in, no valve to piston issues, can use the stock 273 rockers, etc. it's a short duration cam, on a tight lobe centers. it will work with a stock convertor also. I would change springs though. use a spring with a dampner. the comp 901 or the 942 would work well. the cam will pull 6000 to 6500 RPM. the tight lobe centers and short duration makes for a strong torque curve.