[PANAVIA]

There is a huge dependency on the Camshaft for webbers to work right.

If the cam was not ground by someone who was specifically considering vacuum requirements of webbers in its design, then the carbs will not work to their potential.

I would contact COMP cams and ask to speak to a specialist and have port data , combustion chamber data and compression data available.

When ford ran these at Lemans , they had teams of people working on them for months, and they never had to sit at idle in the drive through window at In-N-Out burger.

--so if it takes a bit of work and possibly some revisions once installed, consider your self lucky.

Steve