Re: SU Manifold on eBay

Far as I know from Vizard, the only real drawback to the stock intake manifold 
occurs at higher rpms....it's internal shaping
obstructs rather than aids very high flow
rates and it's balance tube is overly large
in diam. (more narrow in my Maniflow). 

Otherwise, the bolt pattern might be for
larger (1.5's and/or possibly HIF's..sure, why not?)  SU's, etc. ?

Cap'n. Bob      '60 :{)