I raced those hard tail cars at 4 of the 7 or so tracks near me and never had a problem getting down any of'em and one of those was a little on the rough side.
The only tricky part of driving a hard tail is learning how to shut it down and keep it from bouncing. I was lucky enough to have a friend with one that taught me what I needed to know to prevent that and he also told me how to stop it if it started.
And I'm with ya on the SBCs too as I've never owned but one BBC and that was in the first digger I bought. Nothing personal, just don't like'em is all. After all, anyone can make a big engine run, hey!
It tickles me now when people walk by my Camaro and see that it has an SBC in it. They usually do a "double take" and are amazed that it runs as well as it does.
Oh, and you'll be happy with what Curtis does on your heads. I had a well respected SBC builder flow one of mine after I got them back and they were within about 6cfm of what Curtis told me they were, which was probably just the difference in flow benches.