Question about carbs for tunnel rams

Because it has mechanical secondaries without a secondary accelerator pump and only an orifice plate for secondary fuel metering, it's no wonder these carbs are widely regarded as one of the most difficult (some claim downright impossible) to tune carburetors built. In all out performance, double pumpers are much better, and for mostly street usage, a set of edelbrock manual choke carbs are much easier to live with.