solid lifter flat tappet cams with have a more aggressive lift profile than an equivalent hydraulic cam. this will add more power down low and add a few rpm to the top end. you can get a cam ground similar to what you have now, but I bet there are better cams already ground, you just have to pick the right one.

your cam specs are pretty common, but you don't say what you want to do with the car or why you want a solid cam? maybe a better hydraulic is in order and save yourself some valve lashing.