350 vortex

[corvetteracing]

hello what would be a good bin for a 350 vortex head single plane high rise custom holley TBI with Gm injectors 66lb with map plugged and running Vac off manifold, headers, heated O2, 7447computer 4 speed ,,,,,,,,Cam lunati voodoo 213*/219* .454"/.468" 112* #10120701 ,,,,,late external coil HEI distributor not running well,, very rich & backfire through TBI ,,just looking for a good driving car ,,,,,,,,,Thanks friends

[dave w]

To the best of my knowledge, no such chip for the engine you describe is available from the after market chip suppliers. Have you considered the option of "Tuning" a chip for yourself? Several members here would be willing to share chip "Tuning" information. dave w

[corvetteracing]

that would be very helpful need a starting point chipthanks

[corvetteracing]

hello what would be a good bin for a 350 vortex head single plane high rise custom holley TBI with Gm injectors 5235206 - Orange / Black - 61pph - 5.7L / 350 with map plugged and running Vac off manifold, headers, heated O2, 7447computer 4 speed ,,,3:73 gears ,,,,,Cam lunati voodoo 213*/219* .454"/.468" 112* #10120701 ,,,,,late external coil HEI distributor not running well,, very rich & backfire through TBI ,,just looking for a good driving car ,,,,,,,,,Iam now replacing the fuel pump the froma 17psi artex to a walbro gsl391 or 392 anyone better for helpi know this computer 7447 is slow but Iam committed to this set up another ? is this manifold to much for this set up Thanks friends

[corvetteracing]

worked i did upload pictures thanks

[dave w]

Chips are not a simple plug - n - part! So I think it's a MYTH, .... " knowing all the mods done to engine is all that is needed for a chip programmer to make a good running chip. ... NO! (Myth Busted!) ... The "Tuning" challenge is getting a data log from the chip so the "Chip" can be "TUNED" for all the mods done to an engine. It might require several data logs and several revised chips to get the engine running good. ... Are you ready to data log with TunerPro RT? Some EFI projects go the carburetor route because the project owner is not up to speed with TunerPro RT. ...Sad, but it happens. dave w

[corvetteracing]

I hear that I had built a nice custom carb then went with the TBI I do have tuner pro installed on laptop a long with WinALDL program and doing alot of reading this is the info site for learning ,,I have no equipment to burn these chip ,have worked with Brian Harris on other builds but this ones been a PIAthanks

[dave w]

I hear that I had built a nice custom carb then went with the TBI I do have tuner pro installed on laptop a long with WinALDL program and doing alot of reading this is the info site for learning ,,I have no equipment to burn these chip ,have worked with Brian Harris on other builds but this ones been a PIAthanks

I think a good first step, to get things figured out would be for you to post a TunerPro RT data log (.xdl file). Make sure the data log includes some closed loop data. In it's day WINALDL was a good program, fortunately for all of us, TunerPro RT has advanced EFI Tuning to a whole new level not possible with WINALDL (R.I.P.). dave w

[corvetteracing]

where do you find M2732A EPROMs plastic holders ???

[mmigacz]

where do you find M2732A EPROMs plastic holders ???

Do a search on ebay. I know a lot of the used chips beings sold come with the plastic holder

[global2016]

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[kacy]

hello what would be a good bin for a 350 vortex head single plane high rise custom holley TBI with Gm injectors 66lb with map plugged and running Vac off manifold, headers, heated O2, 7447computer 4 speed ,,,,,,,,Cam lunati voodoo 213*/219* .454"/.468" 112* #10120701 ,,,,,late external coil HEI distributor not running well,, very rich & backfire through TBI ,,just looking for a good driving car ,,,,,,,,,Thanks friends

Does MAP plugged mean something other than not connected to vacuum?

[mmigacz]

Does MAP plugged mean something other than not connected to vacuum?

I was wondering the same thing? If the MAP sensor is plugged (or not used), the ECM will think the motor is at WOT all the time.

[kacy]

I was wondering the same thing? If the MAP sensor is plugged (or not used), the ECM will think the motor is at WOT all the time.

Glad Im not the only one.

[corvetteracing]

the MAP port on the rear of holley TBI is incorrect and leads to the IAC so I pluged it as shown in picture and run the MAP right off the intake manifold via fitting