Ok so here's the story I don't own a monte but i do own a buick randesvue that is a 3400. Ik ik it's lame but i wanna make it quick iv read a few threads about 3800 to 3400 crossover parts. I was wondering other then what is mentioned do the fuel injectors differ if so has anyone done if before?

 

L36 injectors should be 22# which should be what the 3400 is also. The L67 injectors are 33# though.

Do you have enough mods where you're pushing your stock injectors? If not, then higher flow injectors won't add any power.

Bonus points for most creative spelling of Rendezvous that I've seen! Lol

 

the 3100/3400/3500 are more common (all 60* v6 engines). The 3800 is a 90* v6. The only part I know that is common with the 3400 and 3800 are coil packs. You can get a little better throttle response from L67 (3800 Supercharged) coils.

Here is a good thread to look at if you haven't done so already:
https://montecarloforum.com/forum/fw...p-power-46071/