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talk about getting in on this post late, but should the engine be in the car to do the connectors. Mine is still on the stand waiting to go to the machine shop.
Any disadvantages to doing the cage, SFC without the weight in the nose?



In a word no. The only time you really need to have the car at wt. is to set ride ht.

If you are using a motor or mid plate bolt those in. It will create some stiffness.

Also unless rules say so go through the floor. It is by far the strongest. But any connector will work, some just better than others.

Tube cars are not as stiff as peopel think is correct but they are stiffer in the places that it needs it. They special built. Look at some pics of fast cars at top end. You will see most have the left front tire either just off the ground or just touching.

As for the front not touching on the jacks. That means the car is already a little bent. depending on where the bend is the frame connectors and cage will straighten out the car. But it should be level or close to it. Re check to make sure the jacks are level. The floor might not be level in the area you are in. Set the jacks where the car will sit and level them front to back and side to side. The mark the spot for the jacks. I will bet that the jacks are not level/even.