let me know which is better and any adustments that would be needed if i went to electrical. third gens run mechanical correct? also is it possible to have too much flow? i'm goona be running about 375 hp and im pretty sure i should be running a high flow mechanical and 180 degree thermo. let me know thanks.

well if you are going to run only in the streets i/d recommend you to stay to a mechanical pump but if your going for a drag car the electric might be a good option...so it really depends on what you are going to do with the car IMO you should just get a get high flow one or even a stock one would make it this hp it's not enough to really need a cooling system improvement

I've covered this once before. The electric puts out alot less water flow but its beneficial to drag racers because u can turn off the engine and leave the cooling system running by running a secondary control switch on your fans and pump. For daily driving yes there are electric pumps that can keep up but its not worth spending a huge amount of money when a STOCK gm pump will still out flow most the electric pumps. Just get yourself a nice new mechanical pump and don't worry about a thing

I put a ProForm pump on my car.
I deleted most of the A/C, I hadn't had it working since 2002. I had to modify the Alt bracket a lot and re run the belt. I had to modify the P/S bracket a little.
Then I converted from poorly fitted belt driven fan to very tightly custom fit stock electric plus a well fitted 12'' pusher fan, 180'F high flow thermo and 20lb cap.
I have no problem keeping cool, in stop and go traffic.
The 180 high flow kind of sucks in the winter.