Where can I find a stock or better tbi unit to fit my 1992 cxmaro rs 305. Is BBK the answer?

 

TBI from a 454 big block
Holley 670cfm TBI
turbocity bored out stock TBI www.turbocity.com

 

I'm using the Turbo City Ported Throttle Body.
Works Great.
-Rich-

 

Hey Rich, how much did it cost for the ported TBI and was it easy to install??

 

http://www.turbocity.com/
$229 plus the $200 refundable core charge.
It bolted right up, and the larger bores cleared the Edelbrock
Performer TBI intake with just a slight chamfering on the intake bores. Nice looking piece too.
I did have a vacuum leak after I put it on. Seems the one I got was a little warped on the bottom.Just needed to clean it up with a steel block wrapped in sandpaper. I suppose I could have sent it back, but I already sent them my core, so my car would have been down.
I also used their Adjustable Fuel Pressure Regulator, and it's easily adjustable by just removing the air cleaner. It's pretty easy to make the stock one adjustable (see ultimate TBI Mods), but lately I have more money than time, so I bought theirs.
Reason I didn't use the Holley Throttle Body was that I'd heard their injectors were not very tolerant of fuel pressure increases, but I've heard that they've corrected this problem by using a different type of injector now than they used to.
-Rich-

 

how good does the ported tbi flow compared to the holly 670?

 

I hear it's around 580-600 CFM.
-Rich-

 

Hey Rich92 I have the turbo city TB with the adjustable fuel pressure regulator. I haven't touched it in so long I forgot how it works. Which way for more fp and which way for less, also what r you using to tell you what your fp is.

 

What about the turbocity "Matched Injectors"? Anyone have any comments about those?

 

Turn the screw in (clockwise if you're looking at it upside-down) to increase pressure. I have a fuel pressure gauge on the supply line between the frame and motor (in the flex-line).
-Rich-