FI people, what TB do you reccomend?

I am currently running a ported 52mm throttle body with my turbo 355. I am pushing about 520rwhp. Do you think it is worth upgrading to a 58mm or even a monoblade? If so what gains might one expect?

So what is your RWHP and what throttle body are you running?

I dont think there will be much in the gains dept going to a 58mm. I've heard that you really only need it over 600rwhp, and the monoblade is only really needed for those that are really pushing the limits.

I was upgrading from a stock one, so I upgraded to a 58mm BBK and I ported and polished it.

I use a Shaner tb. He does very good work.shaner throttle bodies (www.s2performance.net)

I use a Shaner tb. He does very good work.shaner throttle bodies (www.s2performance.net)

Do they make one for LT1's or just LS1's