Speedway control arms

[jjjmm56]

I was looking thru a speedway book and am thinking of using their upper tubular control arms, but not sure which ones I need. I have a 70 camaro clip on a 56 . My choices are a offset style or one thats centered and would my clip be metric? They also come in different lenghts from 8" to 9 1/2". I assume this refers to length from mount to center of ball joint? I am running bags so would a longer than stock arm be of any advantage?

[Bustedup]

Becarefull if it's a racing application. Most don't have bearings and any bit of dirt will wear them out. As an alternative look at Joesracing.com and look at his sealed bearing control arms.

[tymbom]

Metric chassis is G bodies from '79 to '88. The thing about circle track parts is you might have to do some fabricating to get'em to work right. For something as belly button as a Camaro clip I would just order some bolt-ons.