Raising the read suspension

I might be out to lunch here but I would never use shocks to raise or lower any thing its simply not what they are designed to do, thats why the are are called a shock absorber not a shock lifter. shackles will do what you want, if you want a 1" lift above stock height then you need 2"s longer shackle. But if its bottoming out and there is no extra weight riding around in the car then your springs are pooched. If it bounces alot after you hit a bump then maybe your shocks are hooped that too might cause it to bottom out but it would have to be a nasty bump.As for the headers you can buy headers that don't hang down like the "traditional" kind, they cost a bit more(schumaker) but hey,,thats the price we pay. Good luck