Hey guys. Just bought an iroc-z. It is my dream car and I've wanted one for a long time. Picked it up for 600 bucks and it didn't run. Got it to run today, but only on a shot of 2+2 and it's missingoing after that. Just did all new plugs, have a new cap and rotor and wires as of tomorrow. Putting them on next. I've heard a lot of the 305 tpis have soft cams and are known for the lobes kicking out on them. 170 hp is not good enough for me anyway. I'm looking into a mild lunati barebones cam. I want the most amount of power with it still being able to be a daily. I've heard the computers do not like the cams. Any truth to this? Also, if I get a 290/300 cam, am I going to need a stall converter? And can anyone point me in the correct direction for one of those? Would really appreciate all the help as I am new to the car scene and have always worked on suspension parts with trucks. Thank you in advance!

 

More than the duration of the cam, you need to know the torque curve of the cam and the RPM that it makes peak torque. Based on this you can decide what stall RPM you need. Keep in mind that higher torque will cause the stall RPM of a particular converter increase. If the engine is equipped with a MAF sensor (mass air flow) the PCM will usually be able to correct within 10%-15% increase in output, beyond that the ECM/PCM will need reprogramming. If the engine is equipped only with a MAP sensor (speed density system), the PCM and you, won't be happy beyond a 5% increase in output, and the ECM/PCM will need reprogramming.