one thing you need for GSK is PATIENCE.

 

ok ya i will buy the 4000, but if i acidentally revved pass 3200 rpm what could happen?

 

i have the 4k. just dont keep it for a long time. should be fine. just be careful. also one thing they recommend that i havnt done yet is get the 60lb. valve springs along with the 4k gsk. its just to enforce the valves so you dont float them. i just havnt got mine yet.

 

3200rpm is where the valves will start to float