ok, this is my first car to learn about. i have a pretty good handle on how CIS works. wondering...when you switch to carb setup do you need to keep the fuel sending unit (intank pump, main pump, accumulator, filter)?? i know you ditch the AFM. don't know much about carbs. sorry such a newbe question. i am learning. thanks.

Carbs require much much less pressure and flow. Some have used just the in-tank pump for carb setups. Some have used both pumps looping back to the tank with a restriction to get the 5 psi or so that you need. The obvious choice is the cube shaped pump they sell at all the autoparts stores for ~$30. If it was me I would install an SU pump from a british car. The design is a bit silly but they work great and are much longer lasting and make a less irritating sound than those cube type.

Thanks for the info Layne. appreciate it! what does SU stand for. would you buy one new or find one used?

More info than you will ever need to know about SU pumps:

http://www.mgexperience.net/article/su-fuel-pumps-101.html

sweet, thanks for the link. i'll memorize it all.

not really.