I am building a twin turbo 355 and I am going to run a carb and I need to know how to convert one to a blow thru. Or, of one from holley or demon that is already blow thru. Thanks

This is what I'm going to follow when I setup a holley 600 double pumper for blowthrough:

http://www.hangar18fabrication.com/blowthru

Also, the Carb + Boost forum at Turbomustangs has a lot of info about this:

http://www.turbomustangs.com/smf/index.php?board=13.0

thanks for the links. i have checked them out and learned a lot. they say something about sealing the throttle shafts. do you know if the proform base might be okay for this or does it need different seals. thanks

What do you guys plan to use to up the fuel pressure to the carb under boost?

I am not sure. Someone told me there was an AFPR that had a vacuum to it to register boost pressure and would add fuel pressure to compensate. I have not found it yet. Still looking. If someone knows please help. Thanks

The Mallory 4309 has a reference port.

It has a refernce for boost. I will have to check it out. Have you used one or know someone that has. I would like to know how good it works. Thanks

To up the fuel pressure, I plan on getting a Carter Strip Mech. fuel pump and running a boost reference to it like they did here:

http://www.turbomustangs.com/smf/ind...?topic=25144.0