I would like to see a schematic of two flip flops to make a MOD 13 counter. I'm thinking I need a 7490 and 7492 flip flop to acheive this. I need help. Does Q3 of the first flip flop go to the J of the second or the clock input?

 

Your terminology is not correct.

I would like to see a schematic of two flip flops to make a MOD 13 counter

So would we. Two flip flops can count 0 - 3.

I need a 7490 and 7492 flip flop

These ICs are counters, not flip flops. The '90 can count to 10 (0 - 9), while the '92 counts to 12 (0 - 11).

Do you have data sheets for these ICs?

 

Oops its a MOD 13 counter using a 7493 IC chip that is NANDed to make an output to make 13. where is NANDed to is it on the Q1 and all the other outputs (Q0, Q2, Q3) are grounded. is this better?

 

Are you trying to make a counter that goes 0 - 12 and falls back to 0 on the next clock? Both the '90 & '93 have reset inputs.

 

You don't want to ground your outputs; you will soon have an ic that no longer works
Think of how you can use the NAND gates to identify when you have counted 13 and how to use the reset inputs to start over...