Zero decking the 292 will put your compression ratio at about 10:1 or better. If you look under "Tech Tips" to the left you will find that most of the late model six cylinder heads are about 72-74 CC. The exception being the early 194. The cylinder volume on the 292 is about 800 CC. You will also need custom pistons to get to a zero deck, at about $600 a set. As Heater63 says that money put into head work will get you more power.
Larry
