Since you already have the heads I'd do this valvetrain kit from Competition Products.
http://www.competitionproducts.com/H...ctinfo/851226/
They have other kits for a 1.94 1.5 or 2.02 1.5.
Springs are rated to 550 lift you can use the Howards cam I suggested, that you liked but I'd advise not too if drive it with your foot in it all the time like me then I would not but if its spending time mostly cruising then it would be okay but the Doug Herbert cams being the first 2 would be better however another Howards cam would be another good choice, a little more radical similiar profile.
Chev SB 262-400 1955-1998
Advertised Duration: 304/310
Duration @ .050": 251/257
Valve Lift w/1.50 Rockers: .555/.555
Lobe Separation Angle: 110
Intake Centerline: 106
Valve Lash: Hyd./Hyd.
3000-6800. Rough idle, upper mid-range & top end power. Needs 11.0:1+ CR.
As long as you don't use too much poweradders you can use the stock 400 crank no problem just be sure to get the balancer. Use 350 rods an
affordable piston to your liking. This other Howards cam is pretty lopey get a
minimum 3000 stall to use it with 4.10's and hold on the neighbors will hate
it too bad
I've had a few problems with them till I just burned them in their own driveway
then never had a problem since. 8)