Holley HP EFI conversion
#171
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Yep, this is the answer; https://www.holley.com/products/fuel.../parts/556-150
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https://forums.holley.com/showthread...ition-Problems
Last edited by Rookie; 01-06-2021 at 09:22 AM.
#172
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#173
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I understand that. I was just looking at the advantages of using an inductive coil over a capacitive coil. Unless the larger coil is inductive. During my research others talk about the benefits of the longer spark duration of an inductive coil vs the quick hitting of a capacitive coil. I may be off base because my needs will never exceed what I have. lol
#174
Geronimo36
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Not sure Rookie. Haven't done that yet.
I can tell you that I was able to run the setup I posted with both a canister coil and a GM two plug coil. Was told the GM two plug wouldn't work and it worked.... lol I decided to use a canister at the end of the day.
I can tell you that I was able to run the setup I posted with both a canister coil and a GM two plug coil. Was told the GM two plug wouldn't work and it worked.... lol I decided to use a canister at the end of the day.
#176
Geronimo36
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Dyno'd the 454 yesterday with the Holley HP conversion. Long block is stock 454MPI Mag. It made pretty much what I expected out of the setup. For the majority of the tuning I was able to use the self-learn feature and saved a ton of time. Once done I set the learn parameters to 5% and I'll do the final tune in the boat and then turn self-learn off.
![](https://cimg1.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/235x316/mpi_a2642649085422ad3a3a31c3f54fd202730e0167.jpg)
![](https://cimg1.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/235x316/mpi_a2642649085422ad3a3a31c3f54fd202730e0167.jpg)
#177
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Dyno'd the 454 yesterday with the Holley HP conversion. Long block is stock 454MPI Mag. It made pretty much what I expected out of the setup. For the majority of the tuning I was able to use the self-learn feature and saved a ton of time. Once done I set the learn parameters to 5% and I'll do the final tune in the boat and then turn self-learn off.
![](https://cimg1.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/235x316/mpi_a2642649085422ad3a3a31c3f54fd202730e0167.jpg)
![](https://cimg1.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/235x316/mpi_a2642649085422ad3a3a31c3f54fd202730e0167.jpg)
Thanks!
Last edited by Rookie; 01-08-2021 at 07:58 AM.
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Gimme Fuel (01-11-2021), Panther (01-10-2021)
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articfriends (01-09-2021)
#180
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what cam are you gonna run or thinking about running.to get a 454 to make 560hp gonna need a cam in the 240,248 range w/ lift to match heads
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articfriends (01-09-2021)