Towing twin q

[NYCEGUY01]

Right now Im running a HTBG (57mm) and Im gonna hang another one under it. I found a good deal on a new ht3b but it has a 20cm housing.
For all the experts would that be a good streetable towing twin setup ??

Im not worried about building the plumbing I just dont want to pick the wrong setup.

Im thinking it would spool up nice and fast but would the 20 housing be too restrictive ??

Most setups Ive seen are at least a 23 and the majority are running a 26.

Im not after huge #'s I just want to be able to tow and keep it cool.

[CumminsPride]

Open Throat 26. The 20 is gonna build alot of pressure. If it's cheap, buy it for parts.

[swank]

A buddy of mine is running one of those 20's. He is incredibly happy with it. He is just over 420hp I think.

[NYCEGUY01]

Who is running one. Is he over on the Idaho site ??

If he is Id like to talk with him before I make my final decision.

[KTA]

For 550rwhp or less the 20hsg will work great. FWIW my HX60 has a 22 hsg on it, and it never gets over 1300deg and makes over 600rwhp.