Corvette Suspension Question

[junior barns]

Originally Posted by L79racer

I was just answering the OP's question. Would a 12 bolt be faster that an IRS? Yes is the answer. I have no clue about rules for stock or super stock. You have a lot of frictional loss with all those u joints with the IRS. I think I picked up almost 3 mph going to the 12 bolt. Try pushing a vette, they dont like to roll easy.

3 mph but how much e.t.

[ZenzenRacing]

We run the IRS in our SB Stocker 78 Vette. I really think its better than a solid. Every winter it comes out and gets freshened. 3600lb plus and 1.46 60ft in I. Big thing is a good align and bottom rod set.