What size Injectors for 351w

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May 16, 2006 | 11:52 AM

fordtrck302

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Joined: Jan 2002

Posts: 368

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From: Texas

What size Injectors for 351w

I need a little advice on what injector size to get for the 351 im gonna build. I pland on getting a stock 94-97 351w longblock. I am gonna put edelbrock #60399 heads along withEdelbrock Performer Truck 5.8 EFI Intake Manifolds,An MSD distributor, A 1 in intake manifold spacer, Hooker competition headers. 2.25 true dual exhuast with a magnaflow dual in dual out performance muffler, and a K&N FIPK. Now what size injoectors would you reccomend. Can i get away with stock wich i think for 351w is 21 lbs isnt it? And if i need larger ones how would i get the MAF calibrated, what kind of shop would i take it to??? I plan on useing the ford racing MAF conversion FMS-M-9000-T50. If theres any recomendations lemme know. thanks alot

May 16, 2006 | 01:03 PM

Blurry94

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Joined: Jun 2003

Posts: 3,539

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From: Calhoun GA

Stock injectors are should be 19lb'ers (orange tops).
19lb injectors, on a V8, are good to about 250hp (crank), and 24lb injectors should be able to support a little over 300hp at the crank.