See my profile and other CJ 5/7 posts I have answered. I am not a paid mechanic or paid here either...Member like you (this is my hobby) I know CJs well. Keep your problems coming...I will help all I can.
Will it bolt on? I am not familiar with the Rochester.
We bolted a '77 1 bbl YF onto a 4-150 or 151 into a '86....Linkage needed a little modification to work....before we got in deep....we bolted it on and ran a temporary fuel line...and a wire to "hand accellerate" the Jeep, after it worked decent and no deprivation of fuel.....My friend put it on permanent.
Whats wrong with your BBD?....I recommend Using a BBD...from like a '79---has no computer stepper motor....EZ to tune. Available "Rebuilt" from Autozone or Advance Auto....Reasonable. As seen below.
As far as vacuum line issues or other problems you might have ........See "1985 CJ 7 Stalls When Hot" just down the list from yours---14 replies.
I will help you all I can with CJ stuff---just keep replying here.
I have a sweet set-up on mine (not for showing out, but for power and fuel milage) Its a Offenhauser 4 bbl intake with a Holley 390 CFM (0-8007) 4 bbl. Seen Below
Sunday, July 11th, 2010 AT 7:41 PM