Posted by Chris Case [162.158.90.84] on Saturday, September 02, 2023 at 08:32:17 :
In Reply to: Dual headers/ dual exhaust? posted by DDD [172.68.1.180] on Tuesday, August 29, 2023 at 08:45:02 :
A proper carb should only make 1/2" of vacuum at full throttle at road speed. I used 3rd gear on a flat level road. My B&B had 3". So I converted to a 2bbl. Got the added hp, and 1/2".