I want to get rid of the carburetor and convert my '71 big-block Chevelle to EFI using the MSD "Atomic" carb-replacement throttle body.
I'm leaning towards this setup because I already have a complete MSD ignition system (MSD 6AL box, MSD distributor, coil and plug wires) which apparently can be tied-in to the EFI system allowing to control timing. There's just one detail though… MSD claims that their "Atomic" system is good for up to 625 hp...but I guess it would still be fine for my engine setup (496 cu.in. 698 hp on the dyno) as I rarely use 100% of it's power on the street and have no plans to race it either… but maybe I should give them a call to find out what they're going to say about this.
I'm also looking at the new Holley "Sniper" which will be available in a 1,200 hp version.
I was interested in the FiTech system but after I read all the problems that some members had with their "FCC" (fuel command center) which I wouldn't need since I'll be going with a return line and an in-tank pump, but what bugs me is the (apparently) poor customer service which leaves me undecided about them… too bad because logically, they have the perfect system for my engine (the 800 hp. "Meanstreet"). :yes:
Here is a link to the MSD unit: https://www.msdperformance.com/produ...tbi/parts/2910 and the one for the Holley Sniper: https://www.holley.com/products/fue...sniper_efi/sniper_4bbl_tbi_kits/parts/550-511
Let me know what you guys think,
Thanks,
Claude.
I'm leaning towards this setup because I already have a complete MSD ignition system (MSD 6AL box, MSD distributor, coil and plug wires) which apparently can be tied-in to the EFI system allowing to control timing. There's just one detail though… MSD claims that their "Atomic" system is good for up to 625 hp...but I guess it would still be fine for my engine setup (496 cu.in. 698 hp on the dyno) as I rarely use 100% of it's power on the street and have no plans to race it either… but maybe I should give them a call to find out what they're going to say about this.
I'm also looking at the new Holley "Sniper" which will be available in a 1,200 hp version.
I was interested in the FiTech system but after I read all the problems that some members had with their "FCC" (fuel command center) which I wouldn't need since I'll be going with a return line and an in-tank pump, but what bugs me is the (apparently) poor customer service which leaves me undecided about them… too bad because logically, they have the perfect system for my engine (the 800 hp. "Meanstreet"). :yes:
Here is a link to the MSD unit: https://www.msdperformance.com/produ...tbi/parts/2910 and the one for the Holley Sniper: https://www.holley.com/products/fue...sniper_efi/sniper_4bbl_tbi_kits/parts/550-511
Let me know what you guys think,
Thanks,
Claude.