Snowman,

I would try & listen to what Boucher had done to his 2 BBL Holley.

He has recently done modding to his Holley to get the A/F ratios close to what his engine wants.

Hopefully he can post some pics here & you can see first hand on what things to do your Holley.

Turbo6 has been running blow through 2 BBL Holleys for some time now I think he would be a great source of info also.

MBHD

12 port SDS EFI