Most are going to recommend Sniper. Some will say Edelbrock Pro-Flo but it has Distributor fitment issues with the wiper motor plus a few other quirks. MSD Atomic is now Holley aka Atomic 2.0 so same-same. Fast has a system too. Quick Fuel had a system but Holley squished it. Mega Squirt with a home brewed system is another option if you can fabricate and like to play with stuff.