Great info everyone. Thanks so much.

I have a fan assembly out of a Crown Victoria but want to keep it for the 36 I think. I bought a overseas fan...F.F. Dynamics 16" 3000CFM fan off of Ebay for the boys 65 but neither of us care for the red housing and I was worried about painting it and expecting the paint to stay. Does anyone know anything about F.F.Dynamics? Do they outsource overseas? Just curious. Couldnt get any solid information from their site.

My son mentioned he wanted to go with dual 12's and a controller. I really like the SPAL's but their 12" pullers mounting width is 15+inches. I'm limited to 25 inches over all. I'll call them and find out what their highest rated fan in a 11" puller is. The next in line was the Derale Ultra Extreme 12" pullers. Mounting width is spot on 12.25". Two of these would work great but only move 2150 CFM and are pushers.

I'll do some more digging and let everyone know what I find. I may just tell my son we're staying with what we have.