Put in your 8" step up spring and move accelerator pump to the innermost hole....Max squirt!!
This should help a lot!! If you have other metering rods try to go richer in the power mode.
Email me and I'll share my experiences getting mine right!!
It may not give the last HP the Holley will but it sure is less trouble once you richen it up!!!
Do keep in mind that they are set up very lean from the factory for "smog" reasons.
Good Luck,
Jack
