In the 402 we are building, we decided to go more radical, but prior to that, the car ran one step down from what you have and he was never really happy. Basically with the oval ports, a T2, a 4 speed, etc he got to a best of 12.40's and there may be 12.1's - 12.2's in the setup bats about all there is.
With 240-ish @ .050 you are just where you want to be and where he should have been first time through (but I wasnt involved then :). By no means will it be mild, in my 427 Ford I run
[email protected] and its streetable but on the edge, your cam is a smidge milder, but on a smaller motor
That cam should have some real good shake, pull like gangbusters through the mid and run to about 6500 with the heads and intake you have. Should hold lash well as the ramps arent too steep with that lift and duration level, basically a good cam for your setup I am sure you'll be happy
For those who run solid rollers, I have had two engines come in both that lost solid rollers at about 3000 miles. Both were Rat motors that were built by one of the local high dollar shops and done nicely. The last one disintegrated a roller, got a little loud on I-95, and the crap opened the bypass on the filter, then the junk just flowed and took out 2 rods, all the bearings and ruined a Lunati crank
I discussed it with Comp and they say the solid roller is only good for 300 passes max, thats 75 miles if you go in straight mileage, but for the street RPM is lower but still. They said regular solid rollers shouldnt be on the street, and although many companies are making oiled rollers, they said that its still "limited" street, but wouldnt sign up to what limited means. Basically, the lash hammers out the wheels and then without warning they disintegrate, add to the the lack of oil being thrown around by the crank at low rpm, stoplights, etc, make it a tough environment for those little cam followers to live in.
Now I know lots of guys have had luck, but for a street car I go solid flat tappet now, especially if we reduced windage off the crank. Matter of fact we are going to convert a buddies roller 351C here soon, not because of problems, but becuase he saw the effects and lack of warning and just doesnt trust it on a long run
Just my 2 cents, but for the cash spent and possibly lost, I dont recommend them for anything that you are putting miles on