Thoughts on Valve size?

Oh I know that feeling!
X$ $$$ ..two,Rob... For me here: a GOOD valve job,1.88/1.60 combo,will get the job done... That cam's right at the .490" lft zone.. Good gears ,tuning ,good compression ... Maybe
.I would step a size down,&personally: car weight,willing to deal with tuning,and the rest of your combination,would kinda help....