okay i have a 85 iroc but the motor was swap to a 87 350 tpi my question is i want a bigger cam in i want a loppy cam i was looking at the Lunati 60103LK cam but it says its not computer controlled friendly so i would like to know what would be a good cam to go with with the tpi set up? oh and as far as i know the motor is stock but i cant be to sure cause i have only own the car for 3 weeks.

 

oh and my friend owns a iroc with the 350 tpi a 87 and wants to know if its possible to turn the bottom end into a 383 stroker and still use the tpi top end?

 

Just to give you an idea, the biggest Lunati cam you can run with that car is the Lunati #638-60101LK, but it is not roller. You have a "roller" cam/motor. I would look at Comp or Crane's line of Compu-cams. Lopey and tpi don't generally mix too well. I have heard Crane 2032 compu-cam is kind of lopey. You need to keep duration below 220/220 @.50 and lift no more than .470/.470 for a tpi car. You don't want to run too big of a cam and mess up that motor.