What size carb?

[98k15]

I've got a vortec 350, comp 08-801-8 cam, Promax heads with 185cc intake runners, 2.02 intake valves, 1.60 exhaust, wieand street warrior intake, 1.6 roller rockers, msd street fire intake, I need to know what size carb I need, I have access to a 600 and a 750 but I think the 750 will be too big and Im not sure if the 600 is going to be too small, thanks.

 

[Jrgunn5150]

Math's say you need a 563 carb with a 6700rpm redline. I have a 600 on my 406 and it runs fine.

If you have both, you can jet one up or the other down as needed. Try both, see what you like.

 

[98k15]

It's not going near 6700 rpms lol, this trucks a 5 speed flatbed truck, it's set up for torque, I use it as a daily but it's hooked to trailers a lot and used to haul feed and hay

 

[Jrgunn5150]

Then go with the smaller carb.

 

[slowburb]

You'll want the smaller venturis of the 600 for torque production, as velocity and atomization will be slowed too much with a 750.