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 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]

well dave thanks I ordered a new walbro 391 fuel pump, a 30psi fuel presure gauge, to replace ones im using now,and GQ-4xv4 and 20 blank m2732a eproms, I have tuner pro on my windows 7 laptop and dong my studying/readingagain thanks

[mmigacz]

You can try my bin as starting point? I have a 69 Camaro with a 350 -camel hump heads (old school they were good, not as good as vortecs) -.490/.490 lift, intake 278 duration, exhuast 282 duration, 112 lobe separation, 1.6 rockers -performer RPM intake -454 TBI throttle body -headers -manual transmission -no egr -no knock sensor -Using VSS -Using TBI distributor with spark control -no air pump

[dave w]

well dave thanks I ordered a new walbro 391 fuel pump, a 30psi fuel presure gauge, to replace ones im using now,and GQ-4xv4 and 20 blank m2732a eproms, I have tuner pro on my windows 7 laptop and dong my studying/readingagain thanks

Wow, I was expecting a data log before you spent the big $$$! Likely money well spent in the long run, and the knowledge gained will be very very valuable!! ... dave w