I plan on running a 75 shot on my LT1 I have the stock fuel pump,

I had somebody tell me today After I spray so many times that i'm going to wish I had gotten a bigger fuel pump and a adjustable fuel pressure regulator.

but from my research on this board, i see that running the stock fuel pump on a 75 - 100 shot shouldn't be a problem.

What do you guys think

 

I like the added insurance of a 255lph intank. You should be ok for a 75-100 shot on a stock pump though. Anything over that I'd get the 255lph for added security.

 

You don't need the adjustable fp regulator.

You can get away with using the stock pump with the 100 shot, but if you decided to go more I would recommend the 255 in-tank.

 

i'm getting intank walbro fp. how hard is it to install. any guide page??? thanks

 

search LT1 tech for fuel pump install guides,should be quite a few.

Definately may want to get a bigger pump if you spray over 100hp.
Also how many miles on the stock pump? how old is it?

 

it's got 40,000 miles and I'm pretty sure it's never been replaced.