How do I build a walbro 450 double pumper. Want to use twin walbro 450's instead of 255's?? Also

 

I assume you mean one of these?

https://www.evolutionm.net/forums/ev...evo-8-9-a.html

https://www.evolutionm.net/forums/ev...-evo8-9-a.html

 

You need different socks then what comes with the pumps, pumps need to be modified, proper bulk heads need to be used, etc.

I been running a twin 450 setup for a while that I personally built and it works awesome. Never again will I need more fuel then this. I can make you one but they are not cheap. PM me if you want one.

 

Seen it done on a 1000 whp car with nitrous....

with the 255 it was going lean 13 AFR with dual 400 it was fixed though

 

you have to be making some serious power to switch from a double 255 setup to double 450s