185/190, does not compute at 9.4 Scr and 284cam in at +2
As to that cam there are two versions; one is on a 108LSA, and the other is on a 114; So your Ica could be either 68* or 74*
Using the 74* and assuming an elevation of 900ft, the Wallace Calculator spits out a pressure of 130psi@9.4Scr
To get 185plus psi,the Calculator wants
more than 11.7Scr @68*, and more than 12.4Scr@74
If your pressure is accurate; and your heads are iron, then you have a big problem. Since the engine is still together after 18 years; IMA guessing the pressure is NOT accurate. And since the problem is only at below 3500, Ima guessing the Scr is NOT accurate either.
But;
just in case both the pressure and the Scr ARE correct, I tried to force the Calculator to spit out a 185psi number with a 9.4Scr, by manipulating the Ica, and had to go down to an Ica of 48*. I do not think there was ever a BBcam made with such an ICA, and I would think that if your 284 cam was retarded 20*, there is no way your engine should run ; so
IDK
