My 6.1 retrofit thread

OK - Update on the carb issue and modman intake.

Not really a picture post so stop here if this is important to you :)

Although I got the car to mph around 112 with the Edelbrock - no matter wahat modifications I made I couldnt cure the lean bog at launch at the track.

It was either going to be a plenum volume issue or signal problem - but fitting a ProSystems 830cfm double pumper soon told me it was a plenum volume problem.....lean bog dissappeared completely.

UNFO - fuel dispertion at lower rpm saw my half track mph go backwards!

So I rang Patrick at Pro Systems and asked the question on Soeed Talk abiut using a Turtle or plenum divider.

Concensus was that this would not be a complete fix....and that the Modman intake is first and foremost...a dual carb intake.

So a heads up to those who go this path....dont expect great results from a single carb application on these intakes.