Bill, Thanks for the great reply. Since I have new cams and pistons I'm planning on a rebuild, but that will wait for at least a year. Engine is fun to drive as is (no smog pump / EGR / PCV same as a Delorean) but I'll likely remove the Lambda system once I find a 038 CPR. A few questions for you: My current distributor vacuum advance does have the two barbs. Do I just cap off the "inner" barb? Is there any difference between the E and F dizzy curves? What is the "best" way to remove the Lambda system? What needs to be capped off and what needs to be completely removed? What's the best way to configure the fuel distributor sans freq valve? Do you recommend removing the deceleration valves and filling in their holes or replacing the throttle plates with the ones from the B27 or leaving as is? Once the Lambda is removed is tuning basically setting desired timing and CO? Since I've got the B27 to play with I was considering looking at head porting possibilities. Any tips, pointers or warnings? Thanks again for the reply, Rick To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/