Valve springs for howards cams

woah
did you ever figure your compression with the smogger shortblock
that last cam you mentioned would be a real dog till you got it wound up which would not happen with a stock converter and 340 gears
even yor first choice is going to be a big cam for your combo but it will out torque that last cam
but you live out in the wide open spaces
I take it you have the non hp cpnverter
keep us posted
do not go nuts on thr springs you are not building a bracket racer
I would recommend lube saver style lifters