The info I found is 85 & 86 were the same. 202/206 @ .050", lift with 1.5 rocker is 403/415 and lobe separation 114.5. For the cam you are looking at, you may have problems with clearance. I have heard max lift on stock heads is around .480.
previous Vettes: 84 CFI auto, 99 Nassau Blue 6-speed
current Vette is a Turquoise Metallic 91 automatic, 3.07's, Fast Burn heads, SD LT-4 cam, Bosch III's, Accel Super Ram & 58MM TB, LT-1 manifolds, Magnflow catted Y, Flowmaster direct replacement mufflers, 1984 Z51 springs, Koni's, C5 brakes, 275's/315's, VB&P 32mm front sway bar
Hi I have the TPIS cam Torque Secrets : int/exh duration 221/230, lift .454 with 1.5 lifters
112 lobe separation. There is a slight lope on idle, but the cam is good gives a good pull.
A stock engine will be slightly vercammed , but have good results .