Holley EFI 502-9 Fuel Injection Throttle Body

from Suburban Mike

I purchased this unit for a birthday gift and still waiting for it.

from Garon

I bought the first one to replace the OEM TBI, it ran extremely rich, as in black smoke and raw fuel from exhaust. I called Holley tech and was told my fuel pressure was too high. Inline pressure gauge installed and fuel pressure was 11 psi as required. per instructions. Called Holley Tech was...

from JESETER

HAD MY 91 CHEV C1500 350 SMOGGED, PASSED ELECTRONIC TEST BUT FAIL VISUAL. SEEMS THAT QUITE A FEW TBI WILL FIT ANDEWORK BUT NOT ALL ARE ORIGINAL REPLACEMENT PARTS. CAL IS VERY STRICT ON AFTER MARKET PARTS.IF THE TBI HAD BEEN STAMP WITH HOLLEY 502-9 ON BODY, WHERE WOULDN'T HAVE BEEN A PROBLEM. HAD...

from D dog

Put it on no problem easy change put but now wont idle consistant ,blubery on acceleration and kick down is slow to react kinda falls on its face.im still working on it four days later trying to find a problem but not yet

from 92gmcdude

Runs great so far have had 0 problems out of it. And now my truck can really get up and go.