I will add my 2 cents,
The first few revolutions, weather with starter, by hand, or running are the most important. The cam lube is wiped off with the lifters as the motor rotates, so the only lube the cam gets is from throw off from the crank and rods. A good cam grease will hang till it starts, IF the valve springs are fairly weak, but once running, it takes 1500 - 2000 rpm to throw enough oil to keep the lifters and cam from scuffing each other.
I have little doubt yours is probably OK, at the most, your valve springs are in the 60 to 70 psi range with very little cam lobe lift, compare that to a quality race spring in the 200 up to 400 psi range and you can see where lube can play a important part.
You did everything right, up to the point of starting. Next start up have everything ready, fuel, water, battery, and garden hose ( incase it start getting hot, cool radiator). Once started, keep it up in rpm, DO NO ADJUSTING TILL YOU ARE DONE WITH BREAK-IN PROCEDURE, don't let it get hot, and do your best to not shut it off.
With a stock 235, this may be total overkill, but why chance it. Its not just the cam that gets wiped out, the bearings also get trashed from cam material be imbedded in them along with bearing journals, lifters, and the oil pump. A total tear down and cleaning will be required if the cam is ground off.
Good luck,
Joe
