EFI 4 bbl conversion questions - Chevelle Tech
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post #1 of 3 (permalink) Old Oct 14th, 19, 12:19 PM Thread Starter
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Joe
 
Join Date: Jun 2012
Location: Orange County Ca
Posts: 73
EFI 4 bbl conversion questions

I'm planning on doing the EFI 4 bbl kit on my 64 Chevelle. 350 crate motor, mild cam, roller rockers, gear drive, quick fuel carb, I'm thinking around around 300-330 HP. Running a 700R4 trans. Motor/Trans are pretty new, only has 1170 miles on it.

Questions are-
1. Which kit is better between Holly Sniper and FITECH and Why?
2. If i do a LS swap later on, is the FI kit compatible with the LS engine if I run
a 4 bbl LS type manifold ?
3. What's the best way to tap the return line into existing fuel tank? Or is it
easier/better to get a new EFI tank?
4. Anybody who has done the swap, how good is the hand held tune
computer software that comes with the kit?

I've done a search, but cant find some of the answers for my questions. Thanks for any advise!
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post #2 of 3 (permalink) Old Oct 14th, 19, 5:44 PM
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Ed
 
Join Date: Aug 2013
Location: Pittsburgh, PA
Posts: 4,130
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Re: EFI 4 bbl conversion questions

Quote:
Originally Posted by joegio View Post
I'm planning on doing the EFI 4 bbl kit on my 64 Chevelle. 350 crate motor, mild cam, roller rockers, gear drive, quick fuel carb, I'm thinking around around 300-330 HP. Running a 700R4 trans. Motor/Trans are pretty new, only has 1170 miles on it.

Questions are-
1. Which kit is better between Holly Sniper and FITECH and Why?
2. If i do a LS swap later on, is the FI kit compatible with the LS engine if I run
a 4 bbl LS type manifold ?
3. What's the best way to tap the return line into existing fuel tank? Or is it
easier/better to get a new EFI tank?
4. Anybody who has done the swap, how good is the hand held tune
computer software that comes with the kit?

I've done a search, but cant find some of the answers for my questions. Thanks for any advise!
1 Personal Preference/Budget I guess
2 I think so but I'm not a LS guy
3 This I can help with. Whatever you do, use an intank pump with return line in the sender, then what I did was use a Corvette LS filter/regulator that has return line from it, so only 1 line to the front of the car. I swapped out to a 1995 B Body plastic 23 gallon tank and used all of it's pump/fittings.
4 better than me, I really don't mess with it, and just drive it. It isn't perfect, but far better than it was with the carb, and it was OK with the carb before the swap.

1967 El Camino Malibu - Deepwater Blue
ZZ4 350, FiTech 600 complete!,Roadmaster tank, 700R4, Underdash A/C in progress, JGC Steering, 1990s truck serpentine.
Pioneer4x4 is offline  
post #3 of 3 (permalink) Old Oct 17th, 19, 12:33 AM Thread Starter
Tech Team
Joe
 
Join Date: Jun 2012
Location: Orange County Ca
Posts: 73
Re: EFI 4 bbl conversion questions

Quote:
Originally Posted by Pioneer4x4 View Post
1 Personal Preference/Budget I guess
2 I think so but I'm not a LS guy
3 This I can help with. Whatever you do, use an intank pump with return line in the sender, then what I did was use a Corvette LS filter/regulator that has return line from it, so only 1 line to the front of the car. I swapped out to a 1995 B Body plastic 23 gallon tank and used all of it's pump/fittings.
4 better than me, I really don't mess with it, and just drive it. It isn't perfect, but far better than it was with the carb, and it was OK with the carb before the swap.
Thanks for the info!
joegio is offline  
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