I think that you may be looking at a TPI throttle body, I don't think BBK makes a TBI unit, however Holley does make a performance throttle body for your engine. As far as the chip, dont bother with off- the-shelf chips. For a good gameplan for mods on TBI engines check out tbichips.com.New throttle body with a performance chip, good combo?
i have a bbk throttle body on my 85 and its a good buy and chips are one of the most easiest ways of power but since your putting on the throttle body i would put a better air intake i have a K%26amp;N on mine and it makes it flow betterNew throttle body with a performance chip, good combo?
Well tossing on bolt on modifications then expecting an out of the box chip to improve everything may be a bit of a stretch.
Usually larger TB won't do much for you unless you have changed the volumetric efficiency of the motor. ie change heads, port upper lower intakes etc. TB should be further down the list of mods unless you just have $ to toss around.
There are more obstructions within the engine itself that effect airflow much more than the TB.
The chip has a set of fuel maps programmed into it that are not changeable. There are long term and short term BLMs that will adjust to slight variations in temp/humidity but I wouldn't expect the out of the box chip to know what exhaust, TB, intake, etc you are running and automatically tune your engine for that combo.
I have been modding and tuning my GMC Typhoon for 5+ years now and I gave up using "chips".
I now use a ECM emulator that can be tuned on a laptop on the fly.
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