Good morning all. It.s time to replace the headers on my 70 camaro 4spd pwr steering.The headers on there now are FLO TECH AFTERBURNERS. These are not the right ones for the car , we made them fit, cut ,weld ,bang heat tubes and dimple . Was wondering what new set of 1 5/8ths dia. tube would be the best fitting for spark plug access, Z BAR clearance, ground clearance,starter and oil filter access. I was looking at HEDMAN #68270 but i dont have much experiance with different brands of headers to know wich ones fit better than others. Thanks for your help in advance . Alex