Fuel Injection on ZZ4

[Jerebus67]

I am thinking of taking this Demon off of my ZZ4 (sick of fouling plugs) and put a fuel injection system on my 67 camaro. Has anyone put an injection system on a ZZ4? I was looking at Jegs and they have a Holly and Edelbrock but wondered if the compression is too high?

[race-rodz]

i put an edelbrock pro-flow on a customers zz4 in a street rod. its quick and easy install/works good.

[mazspeed]

i put an edelbrock pro-flow on a customers zz4 in a street rod. its quick and easy install/works good.
What's the power difference, and would it be better then a demom carb on a ZZ430?

[907rs]

What's the power difference, and would it be better then a demom carb on a ZZ430?


Probably not a whole lot of difference in power, but cold starts, overall drivability, and maintenance (or lack thereof) would be greatly welcomed.

[907rs]

I am thinking of taking this Demon off of my ZZ4 (sick of fouling plugs) and put a fuel injection system on my 67 camaro. Has anyone put an injection system on a ZZ4? I was looking at Jegs and they have a Holly and Edelbrock but wondered if the compression is too high?

Jeremy, compression won't be a factor in choosing a FI system.

[TravisB]

We have a ZZ4 going in to a 33 cabriolet....We a hilborn EFI unit on it (8stack) it looks wicked but have noe idea how it performs yet?

[race-rodz]

i dont have any comparison for power by the ass-o-meter, the engine came off the pallet and on went the injection. a true bolt on system, edelbrock supplied the chip for the zz4 cam, and the hand held programer lets you fine tune everything.

obviously spending the money on a fully mapable system will net you more power, but that requires some dyno time, and somebody who can tune the program..... i think overall ease of install and operation make the pro-flo set up great...especially for the price.

[race-rodz]

zz4 with proflo injection.... the intake was smoothed and painted, the rails were polished, and the cheezy brass fittings were replace with AN and braided line. sorry for the poor pic... its all i could find.

http://img190.imageshack.us/img190/622/profloedited0he.jpg

[mazspeed]

That's pretty cool, gives me some ideas. I wish I knew the HP difference or MPG difference. Thanks for the photo.

[race-rodz]

as i recall...edelbrock claimed a 20ish hp increase over a carb zz4, as for mileage...i couldnt tell ya, this customer ran outa money, so the car left before it was completely finished...and as far as i know its still sitting as a lot driver.... behind the local caddy dealership where the guy works

[Jerebus67]

great info. Thanks for the help!