Hey all,
I know I'll need to replace my 19 lb. SVOs when I swap in the 355, but should I go for 22 lb. or 24 lb. injectors? The 355 we're assembling will be around 9.7:1 compression with a ZZ4 cam, ported plenum, and SLP runners.

TIA!

 

22 (stock TPI 350) or 24 should be fine.

 

I am runnngi 22lb ones . They will support 400ish hp I keep hearing. Get an AFPR to help

 

I've run as high as 425 hp on stock 22's. - so yes, another vote for 22lb'er...aftermarket 22. - I'm another person who recommends staying away from accel though....

 

I use 24 lb/hr ford motorsport injectors. Just my two cents and don't waste your money on anything that has Accels name on it.

 

Thanks for the input guys. I've found some reasonably priced LT1 22 lb. injectors, so I figured I'd make sure they work before I spent the coin.

Thanks again all!

 

Install the 24#/hr Ford injectors and also a Holley AFPR. Those injectors will allow you to make up to 450 Hp at higher fuel pressures. At near stock fuel pressure, you may not need a new Eprom. However, at higher fuel pressures and higher Hp output, a custom Eprom would be a requirement.

 

no BS go to the 24lb motorsports!