New Holley 4 bbl
Just purchased a 87 Minnie that the previous owner had a New Holley 4 bbl recently put on, went to get the rig smogged and the tech said it was running too rich and it didn't pass. When he did the H...
Forum Discussion
Take it to a carb specialist. I had my E350 done years ago and lost almost everything over 50mph. Turns out the spec book was for a 650cfm when it really needed a 750cfm. When properly installed and jetted, it improved my mileage 3mpg and ran great at 65-70 mph. On my 302 Ford van I looked for someone to work on the carb/fuel to pass emissions. Found the right guy at the shop next door, who spoke no English, but was a master with the carb. Result, tested out better than a new carb standard, and had to be run by two different testers before the DMV would accept the results.
