Have looked around alot and failed to find what im looking for.

Is there any forged of the shelf .030 over pistons for a stock stroke 340 available that would give about 11:1-11.5:1 compression?

Needs to work with a set of Edelbrock RPM 340 heads.
If i remember right the chambers are 67-68 CC My memory is alitle fuzzy on that part.

Yes i know those heads are stupid but i already have them.

Im weighing my engine options here,the car was parked along time ago and have started planing to finaly get it back on the road again for some fun times, i have a long way to go to get there but im trying to figure things out ahead of time so to speak:)