[PANAVIA]

We just got one of these in fro a customer project, they also seem to be jetted a little heavier than the previous generation.

Havent taken it apart yet, but on our air-fuel meter on the engine run-in stand on a stock 5.0L with a Stock 1989 roller cam and a basic dual plane street manifold ran a really rich F/A ratio .

probably is fine with more cam or more cubes, -- but worth passing along.