Re: Cam choice for 350 with Vortec heads
I am very happy with the Elgin E-923-P in my DD Blazer with a 350, which sees some towing and is about 1000lbs heavier than a Chevelle and has a stock converter. That cam is 270/280 advertised, 204/214 @ .050, 107/117 lc, 420/443 lift.
For the OP, with a lighter car and a bit of converter, I think the next "bigger" cam would work well: the E-922-P, which has 288/298 advertised, 214/224 @ .050, 443/465 lift, 112 lc (probably the same 107/117 split - don't see it on the website I'm looking at)
flat top 406, AFR 195's, XR286R, RPM AirGap
750 Holley DP,TH400 w/brake, 4000 stall FTI
3.31 gear, 12 bolt
... for now.