273 cam selection on Desktop Dyno

No problem Redfish, I do the same. When you read a post and have a question you have to ask it. That's what FABO is all about. I have a set of 302's and a spare 273 head. I haven't looked at them close for a few months but I remember that the chambers looked about the same. A couple small block books I have list the 273 heads as having the smallest cc chambers of all small block heads( mostly because of the small bore). I don't know about the intake port matches because I've never tried any other intakes. I have heard a lot about the Edelbrock LD4B because it was designed for the smaller cube and port 273/318. When I was dinkin' around on the dyno program I
changed the intake from a open plenum to a dual plane and gained some
low end torque. If I was planning on modifying my motor very much I would try to find a LD4B. Driving your 273 on the street needs more low end. Every performance mod you do increases power but adds rpm to get there. I'd like to rebuild mine basically stock but with a modern cam and some minor head work to get at least 300 hp. I don't think that's out of line. There's lots of parts out there to build a max output screamer but I don't want to go that direction. toolman