Need advice on Fast XFI or Holley

[Urbanhotrod]

Guys I did some research and I'm stuck. Not sure which one to use now. The Fast or the Holley MutiPort. Heard good things about both. I have a 5 speed BBC 502 With a Solid Roller and Dart Heads Basically A weekend toy but I like a great running car so I'm now going Fuel injection. I ruled out the FITech, Becuase of the limited Fuel maps

Any help is appreciated greatly
Let me add the Motor is not a slouch 772 Brake HP .

[supremeefi]

Guys I did some research and I'm stuck. Not sure which one to use now. The Fast or the Holley MultiPort. Heard good things about both. I have a 5 speed BBC 502 With a Solid Roller and Dart Heads Basically A weekend toy but I like a great running car so I'm now going Fuel injection. I ruled out the FITech, Becuase of the limited Fuel maps. Any help is appreciated greatly
Let me add the Motor is not a slouch 772 Brake HP .

If you're looking to go multiport don't forget to look at the AEM Infinity as well.
Whatever you choose I always recommend downloading each manufacturers software and going from there.

Thanks.

[mitch_04]

From what I've read it seems like people really enjoy Holley.

[Urbanhotrod]

Thanks guys. I am looking at the Holley the most just need to figure out which one is right for me.
Any Holley dealers on here?

[Vega$69]

I just installed a Fast EFI on a 383 Stroker. Works great and easy to set up.

[will69camaro]

Not sure who to get it through but loving my Holley Dominator.

[64duece]

I can help answer any questions you may have...anything specifically?

[mike renick]

Brian macy horsepower connection can help havasu az

[dale68z]

I have xfi sportsman using the fast throttlebody. Have had it for about a year. Works great! Very tuneable and will self tune.

[jonathonar89]

Big Stuff 3 is another great option. Many of the top drag racers in the country are running those systems.

Megasquirt (www.diyautotune.com) also has many choices for building a standalone efi system.

[572Camaro]

I have used FAST XFI and Holley Dominator EFI systems before. Recommend you consider the following:
How much manifold vacuum does that 502 have at idle?
If it is less than 10"Hg, I would be cautious about using the EZ self learning systems as they tend to not provide optimum fuel maps for low vacuum applications. The XFI can handle it easy.
Are you running manual or automatic tranny?
Some self learning systems tend to keep relearning with manual transmissions as you go through the gears, not optimum.
Are you comfortable using a laptop to tune EFI systems?
I had a bad experience with my first EFI system because I lacked training on tuning. Tech support didn't help that much. I ended up attending EFI University so I could drive my car.

Whichever way you go, I strongly recommend you read the very top post on CPGNation, FAST Support Forum, "before you buy any self learning EFI system, please read!"
That post applies generically to self learning systems, not just FAST.

Best of luck and keep us posted so we can help going forward.

[GregWeld]

I'd personally have to ask you why you'd think EFI is going to make the car run better --- if it isn't tuned well now -- what do you think the EFI is going to fix??

I'm not saying NOT to go EFI -- I'm a big EFI lover...... but I wouldn't expect a poorly tuned motor to run any better with EFI than you could tune it with a carb.

And here's the real debacle -- and I'm NOT bagging on you -- but if the motor isn't running well --- all the time -- then what are you attempting to fix??