WTB-multiport intake for vortec head 5.7

[Fast355]

Those Edelbrock systems are quite old I think, techniques always change. If I were to do it again the 7747 wouldn't fly, either the 7427 or 0411 even for just the electronic trans control. The impression I got on the drivers is that they were overloaded and damaged. I was having problems with solder joints from the TBI injector harness to Edelbrock MPI harness- Howell refused to put an injector harness together for me.

Edelbrock just did not wrote a very good program in the chips they shipped. Especially for the 93+ trucks. I have fixed several of them. I also ran a GM TPI with the 7427. I also ran the TPI with an EBL without port fuel mod.

[dfarr67]

I bought that MPFI kit brand new at the time- expected it to be a little more solid- you say quality of tune and I remember the literature saying for vortec crate engine only.

[dave w]

Perhaps the following statements apply?

The more you know about EFI, the less you pay for EFI.
The more you know about EFI, your ride will get up and go better with EFI.

dave w

[dfarr67]

Edelbrock just did not wrote a very good program in the chips they shipped. Especially for the 93+ trucks. I have fixed several of them. I also ran a GM TPI with the 7427. I also ran the TPI with an EBL without port fuel mod.

What exactly is the 'port fuel mod' ?

[Fast355]

What exactly is the 'port fuel mod' ?

An injector driver modification that RBob sells for the EBL to eliminate peak and hold

[dave w]

What exactly is the 'port fuel mod' ?

Please see attached MPFI Information.zip file. It's a "How To" for converting a 16197427 computer for "port fuel mod".

The EBL System works great for MPFI, but does not control an Electronic Transmission (4L60E / 4L80E).

For the DIY type, converting a 16197427 to MPFI is considerably less expensive than an EBL System, with the added ability to control a 4L60E / 4L80E.

dave w

[Fast355]

Please see attached MPFI Information.zip file. It's a "How To" for converting a 16197427 computer for "port fuel mod".

The EBL System works great for MPFI, but does not control an Electronic Transmission (4L60E / 4L80E).

For the DIY type, converting a 16197427 to MPFI is considerably less expensive than an EBL System, with the added ability to control a 4L60E / 4L80E.

dave w

I agree with that. However depending on what the plans are the EBL has other functions. 2 bar MAP sensor. VAFPR compensation. Nitrous control. Alpha-N fueling. Lean cruise and more. The datalogging and VE correction are also alot more straight forward. It also has a built-in flash bank that allows you to tune on the go.

[dfarr67]

I agree with that. However depending on what the plans are the EBL has other functions. 2 bar MAP sensor. VAFPR compensation. Nitrous control. Alpha-N fueling. Lean cruise and more. The datalogging and VE correction are also alot more straight forward. It also has a built-in flash bank that allows you to tune on the go.

I still have the discontinued flash switcher.
Robert has been very good answering questions. And I think it is worth mentioning that PnP is attractive to some people.