Thanks for answering. Sorry to be confusing- long day and brain -frazzled. OK, when I change heads thought about going to a smaller chamber- eithier 72cc or 67 cc to bump up comp. from approx. 8.4 scr and 7.6 dcr to about 8.7 scr and 7.9 dcr or 9.1 scr and 8.3 dcr. this with 72cc or 67 cc chambers, respectively. Quench, which I'm still schooling on, will be a bit high around .045-.055 depending on gasket. No actual choice on cam yet as waiting to see what I end up with. But with the bump up in comp. figured that I could step up cam some, maybe in the low to mid 220* range with lift in .470- .510 area.
Hope this clears things up a bit. A bit more info on motor I'm using a holley 600cfm with vac. sec. and Holley 300-36 dual plane intake. Am I looking in the right direction for setting up a stronger motor? Will be street machine only
and actually seems to run pretty good for what it is. Has good get up and go from dead stop and feels pretty torquey in the lower rpm range.
Back to heads- 180cc sounds like the choice now have to decide on chamber size and figure from there.