EFI vs. Carb fuel system, is EFI really 'that much' more expensive?

[Sweet5ltr]

Would you definitely go for the Hyperspark distributor over an MSD setup?

When I bought the engine it came with an Edelbrock intake and a F&B 2 barrel body. So my plan was to keep the Edelbrock and go Sniper with MSD. Yes or no??

May want to hold off on the Hyperspark for a 383/400. My mating surface to tip of distributor shaft was 3.375” when the factory spec is 3.5” (including the pro-billet I removed) so waiting on engineering to get back with me to verify this is a one-off issue or a production run problem. Only sticks in the distributor gear / oil-pump drive 1/16”, factory is a slight bit over 1/8 - 3/16” on my setup.

 

[5.7 hemi]

Do you have an aftermarket oil pump drive gear?

 

[Sweet5ltr]

Do you have an aftermarket oil pump drive gear?

Factory style, purchased last year, it’s from Mopar performance. DCC-3571071

 

[5.7 hemi]

Well since it’s from Mopar Performance, I guess it’s right.

 

[Sweet5ltr]

Worked with the pro-billet at least.

 

[5.7 hemi]

I need to get the 565-209bk dual sync from Holley. It’s 350 now and I wouldn’t mind having the ecm control the timing.

 

[andyf]

Would you definitely go for the Hyperspark distributor over an MSD setup?

When I bought the engine it came with an Edelbrock intake and a F&B 2 barrel body. So my plan was to keep the Edelbrock and go Sniper with MSD. Yes or no??

You don't want a MSD distributor if you plan on using the Sniper to control timing. You need the Hyperspark if you want to control timing. You could also use the Dual Sync but it is more complex and more expensive and doesn't work any better. The dual sync is designed for multi port injection which you don't have.

 

[747mopar]

I didn't start this thread to really undermine anyone with a carburetor, the entire thread is to really build upon the added value of TBI EFI for a similar cost.

I'll add one more comment here to the discussion. Many rarely ever discuss fuel wash and oil-fuel contamination. This is widely prevalent on carbureted applications.

On my 470 low-deck, I invested in a base-model 850DP Holley when transitioning back to N/A. That was one of the worst mistakes in my life, after putting three-hundred miles on the new engine build, unable to tune the ultra rich part-throttle cruise condition, the engine had a Holley Sniper EFI system.

I'm glad you did start this thread, it provides a lot of interesting feedback on the subject and I didn't take it as undermining. People would have to have their heads in the sand to not admit the fact that EFI is the greatest thing that's happened to cars in decades. For me it's just the love for the simplicity of a classic where screwdrivers and wrenches can fix anything. With my daughters Satty project coming up I'm looking more and more at EFI. Keep the info coming.