Does this sound like a good engine combo, i am considering buying a car with this but i am kind of split on my decision. 306 with forged eagle rods and crank, trw pistons, cartech upper intake, gt-40 lower, 30 lb injectors, 70mm tb, 351 ported heads, 255 lph fuel pump, solid lifter, comp cams 580 degree. Not really familiar with solid lifter cams? why would you change from a hydraulic roller to a solid lifter?