670cfm holley throttle body
 

hey guys...

i ordered one of these today and i must say that im very excited. they say the horse power and torque will increase by 25%. have any of you tried one of these? i hear they are excellent and add alot of power. this plus my new spacer should bump me up over 300hp. any comments?

RE: 670cfm holley throttle body
 

Im interested in this but what year, engine, etc is your truck. I havnt heard of this as of yet.
Thanks

RE: 670cfm holley throttle body
 

ahhh...sorry i left that out.

i have a 1989 single cab 5.7L 350 Chevrolet Silverado. i believe they are about 220hp or so stock.

RE: 670cfm holley throttle body
 

so your just replacing the stock throttlebody with an aftermarket one?

RE: 670cfm holley throttle body
 

well, i installed it today...i can tell it added some serious power, but i cant tell exactly how much because of the unresolved jerking problem in my truck...it really slows down my performance. as for acceleration and taking off....dannggg...lol. the stock was 500cfm or around that. i can really feel the torque with this one. worth the money.