Welcome wagon

[1970CUDAAAR]

I'm new (past 4 months) to the forum. I own a 1970 CUDA with a 440 HP - with a Holley Sniper EFI -with a HEI distributor.
I'm getting all kinds of number on how to set the timins - is the following OK for a street car with is Moapar extreme energy cam (Lift = .477 INT .480 exh - Duration .268 Int .280 Exp):
Initial timing on balancer 8 degree
Timing appearing in the Holley manual = Idle 18-34 - Cruise 32-44 - WOT 28-40 = which one is good for me

AFR - Idle 14.0 - Cruise 14.5 - WOT 12.5 (suggested by Holley)

Thanks!

 

[moparlee]

Welcome to the site from Michigan!
If you post this up in the Engine Issues forum you will probably get more responses.

 

[fasjac]

Welcome to the site from Arkansas!
As Lee said, you’ll get some help for sure.
Initial timing sounds a bit high to me but, don’t know with efi. I do know voltage and grounds better be as good as it gets with the set up.
My buddy just removed the same system and going back to carb. They just couldn’t get to perform right consistently. His job keeps him away from the car sometimes 6 months at a time. ?? Lots of guys love em though. Good luck to you and glad you joined up.

 

[mrmopar340]

Welcome. These guys will help you get it all sorted out.

 

[Mopar Nut]

 

[Challenger RTA]

Welcome to FEBO. Post your problem here. https://www.forebodiesonly.com/forum/forums/fuel-and-air-systems.25/Holley Title it. Sniper EFI -with a HEI distributor. Good info above to start. Someone here more than likely knows how to deal with it. By the way post some pictures too.

 

[Xcudame]

Welcome to FEBO from the desert! Yes, some photos would be nice!

 

[Rapidfire]

Welcome to FEBO. Nice to have you with us.

 

[1970CUDAAAR]

Here are some photos. When you store a car for the winter and remove one cable from the battery does that kill the memory of the EFI monitor. In other words is it possible that some data need to be reloaded as a result of a prolongue disconnection of the battery? Also in the Holley manual it indicates that hte setting for Baic Sparks is Idle 18-34 - Cruise 32-44 - WOT 28-40. How do I determine which no. is the right one for my application: 440 Mopar - Street Cam - HEI Ingntion, Thanks!

 

[Challenger RTA]

@1970CUDAAAR That's NICE! NO WHAT THAT'S REALLY NICE!!!​

 

[Xcudame]

Yes, very nice car! And yes, the memory will be erased after a long period of now power.

 

[1970CUDAAAR]

I presently have a aftermarket HEI distributor with a coil. My understanding you cannot use the EFI Monitor to set the timing. It looks that to do so I need an Hyperspark distributor at a cost of over $ 450. Is this realy true??? What can I do with my aftermarket HEI wit a coil. Thanks!

 

[Challenger RTA]

What can I do with my aftermarket HEI wit a coil.

Sell it here or somewhere else. Someone might want it. Cuda - Challenger Parts for Sale