350 TPI Swap... Is it that EASY????

[79GP6.6L]

I don't know about the 4.3 pump, but many people run the Grand National pump with TPI.

This might help with your fuel system details.
http://www.robertpowersmotorsports.com/EFI_Pump.html

 

[dogsht]

On the pump www.racetronix.com. Look at the Buick Grand National pump links. Its as drop in as can be with top of the line walbro high performance pumps at competitive prices when you compare to collecting the wiring etc to make one up yourself. Also if you can't find a 4.3 tbi or GN/Ttype tank & hanger local you can get a new aftermarket one at the ebay motors vendors just look up GN fuel tank. Buy some new 3/8" roll line and or you can use your existing feed line as a return. If you don't buy the 350 tbi engine & setup you can still use the in-tank setup & get all the benefits of it with a Mallory 4309 return style fuel pressure regulator to mount in your engine bay to run a single line from to your carberator. As I did on my 509ci carberated Cutlass. The original GN tanks internal fuel pump buckets are better (as seen on Bob Powers site) than the aftermarket tanks but they are not new and shipping companys won't let you ship a used fuel tank so you would have to find a rust free tank locally.