You need additional info when your using the cast iron heads. What is the cc of the chamber of the heads now they where cut and was the block decked when you built the engine??. That is going to get you to the SCR and what needs to be done to run on pump gas. Is this for street use?.
The answers to that will lead you to if a stroker is doable or if the SCR would be too high.
Last edited by 1Gary; 10-28-2012 at 08:50 AM.