I am no expert...I like to tinker .....

Those carbs are not known to be lean, especially considering they are annular. But what always gets a car moving is fuel and timing. More timing always gives you a better 60ft, until you go too far. And the more timing, the more fuel the engine will want.

If you comfortable where timing is at, then I suggest squirters...Get a bunch, and tinker. They also make different squirter cams, get a set...Find the best squirters and then tinker with the cams. That is how I do it. I go up in squirter until its too much...No squirter is too big for me...

PS I am anti power valve, so all my stuff is square jetted and easy to figure out. I would go that way to start with, and then if you really like power vales, take out 7 sizes in jet, and put them back in.I do not like them at all.....