here we go...a quote from another forum...there is a progressive 2bbl carb...
The 5200 is nearly identical to the Holley-Webber 32/36. It's a 2bbl carb with a progressive linkage. Until 3/4 throttle, only 1bbl is open. The second barrel open starts opening at 3/4 throttle and opens all the way at full throttle for more power. It's a good economy carb for a mild motor.
it is possible to rejet that one for some sort of turbo setup...that would just eliminate the economy part...and i dont know how many CFM it is either...so if someone knows that figure that would be great.
