If I am not mistaken the bracket is the same in the 5122 as it is in the 5115 and if not you can buy it for a few dollars.
If you plan on going the push button route I would still suggest the throttle switch and wire the push button in with it so that you have to be at full throttle and have the button pushed.
Also I would bet that the jets are different sizes for the 70 shot that he has vs. what you need for a 70 shot. You need to figure out what jets you need for a 75 shot with the mustang and make sure they are not different.
Anyone with a 5115 kit should be able to tell you but I cannot remember right now.
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James Cox
nochevy@hotmail.com
1991 Mustang LX
12.565 @109.38mph 1.764 60ft
[This message has been edited by Five0 (edited 08-10-2001).]