OK...your cam specs out as a HOWARDS CAMS CL111145-10...good cam, little chat about failures...so you should be good
190 PSI gives you roughly 9.5 to 1 compression...not too high...
A 600 HP power adder is overkill for this engine, but that is another story
I know this is silly, but you did check firing order 18436572
Drivers side front to back 1357
Passengers side front to back 2468
I have also seen cams boxed wrong and you end up with a 4/7 swapped firing order cam...so the firing order becomes 18736542...but I really doubt that would happen...??? grasping at straws here...do you have the tube the cam arrived in ?


How smooth does it fire when at idle? Does it want to shake itself all over the place?