Looking to upgrade my fuel pump with 305 to 350 conversion. I heard Walbro was a good brand. Looking at the 190 and 255 sizes. Any advantages with the different sizes? Will I need to upgrade any lines with the added pressure? Thanks for any help!

 

you haven't specified much info, like mods, fuel system type, etc...

 

^^^^ Agree. We would need to know a little more about the motor to be able to help you out. But on a guess. I would use the tpi pump. I heard good things about it. Plus you wouldn't have to upgrade anything just make sure you swap injectors if your running the tbi.

 

Here's a little more info: stock fuel pump in camaro right now. I'm swapping out the 305 tbi for a 350 tbi using the same throttle body and upgrading the injectors from 40 lb/hr (i think that is close to stock) up to 55 or 65, whatever I can find. Some posts I've read say to upgrade the pump on this switch. Will the fuel regulator be able to handle the extra load? Hopefully this is enough. Yes, I will also be getting a chip and ESC Module for the swap.