[blykins]

I would be concerned about going all the way to an 88 with a 750 sized carb. This is the same carb I use on all of my engines this size (and the same carb I send out to replace the Holley Street Avenger on all the Roush 427R engines), same calibration, etc. I normally do not have to jet up on the dyno to achieve the correct A/F ratio and normally just have to open up the HSAB's very slightly. As a matter of fact, the restrictive air cleaners that are used on Cobras typically richen the mixture up just by themselves.