I know the Holley pump is not a direct drop in replacement, but what is involved in retro fitting it to work? I can't really imagine that it would be to much to change, but I would like to have a heads-up on what I need to do the swap.
Thanks, Ryan

 

Check here
https://www.performancetrucks.net/fo...ght=holley+255

 

that's a great informative link, good help 02BlueStepside

 

Its the link I used when I installed mine

 

Can this be done with a returnless system? Is the install pretty much the same?

 

Awesome info, thanks a lot man. It doesn't seem to be nearly as bad of a job as I thought.