CLASS RACER FORUM - View Single Post

brett3533 · 09-29-2021, 06:40 PM

Holley was better on our LS1 and our COPO across the board et mph and horsepower. Holley was the best for us and Robin always is good to work with when we need help from start to finish of our projects. The holley system is compatible with race pack also !

09-29-2021, 06:40 PM	#4
brett3533 Member Join Date: Jan 2007 Location: maysville Posts: 118 Likes: 15 Liked 41 Times in 13 Posts	Re: Big Stuff 3 vs Holley EFI for LS engines Holley was better on our LS1 and our COPO across the board et mph and horsepower. Holley was the best for us and Robin always is good to work with when we need help from start to finish of our projects. The holley system is compatible with race pack also ! __________________ Brett McFarland A/S