i know with the older 048's we ran in the utes, 1810kg,, 235's we set out at eastern creek at 28 and bleed them off at 40. they seem happiest at 40-45psi hot. heavy car and probably not relavent. but worth knowing i spose.
from the top they will have a small oil hole in the middle. solid has none. not that you can see with the cams installed. also the cams will have an un worn on not shiney part on the heel of the lobe from valve clearance in solid lifters.
they could be called a 280/60/18... where as the 27/65 is more like a 45 series.
getting them new is ok but for second hand, abit tricky as only 2 cars in gt and production sports use them. gt3 rsr gt car and the supra i used to work on in production sports.
injector dynamics modify the existing bosch ev14 injector with there own nozel. because they are a ball type injector this is posible. (not a pintle and seat.)