Which type of TB is most streetable?

[TT402LS1]

I have a Victor Jr. intake, and dont know what kind or size TB I should use. I want something very streetable. Is 90mm mono blade too big? Is a 4 hole carb style best?? How about a smaller mono blade (75mm-78mm)??? Has anyone tried these differnt ones on the same engine?

Thanks - Ron

[69 L88 Camaro]

I would look to progressive 4 hole first. Then look at the throttle arm and if you can soften the off idle travel by a long arm or a cam type cable actuator.

[camcojb]

Originally Posted by TT402LS1

I have a Victor Jr. intake, and dont know what kind or size TB I should use. I want something very streetable. Is 90mm mono blade too big? Is a 4 hole carb style best?? How about a smaller mono blade (75mm-78mm)??? Has anyone tried these differnt ones on the same engine?

Thanks - Ron

The 4 barrel tb's around 1000-1200 cfm are very streetable. I did go from one of those to a single 75mm monoblade on a Procharged big block, and definitely picked up throttle response. I run the monoblades on nearly everything. As far as size, even the factory uses a 90mm now, so anything up to that isn't too big. The secret is in the tune, but a super large monoblade can cause issues since very little throttle movement gives big increases in airflow. Anything up to 90mm would not fall under that in my opinion.

Jody

[rocketman]

Depends on the intake, I had a sheetmetal with dual 90's on it and a brodix with a 4 barrel style fast tb. for your set up I would use a fast 4 brrl style