Actually if the airflow is too sluggish from the carb being too large the AF might be too lean but thats a non issue for you here as the 600 will be perfect & no need (for me) to confuse the issue. For the cam I would Google it & find someone credible recommendations (car owners) so you can get the right cam the first time & I would definitely go conservative (when a cam co gives me a recommendation I go 2 or 3 sizes less! (even with Dave Hughes)
Yeah...I am worried about going too big with the cam and it falling on its face. This is not a car I am planning to race. Just would like to have a bit more punch and keep it looking fairly stock.
I'm also going to send out a note to the email lists I belong to.
Thanks for the help.