Will stock injectors and fuel pump be ok?

[Chris6050]

I am going to be getting a set of Holley Systemax heads to go with my Trick Flow Street Heat intake and stage 1 cam. Will my stock injectors and fuel pump be ok to handle this or should I upgrade? I will also be installing an AFPR. Thanks for any help.

-Chris

 

[Michael Yount]

I suspect you'll be right on the edge with the 19# injectors; you will totally outrun the stock fuel pump. If it were me, I'd upgrade the pump with the head install; and then I'd drive it a bit - a dyno with wideband to check a/f ratio would be ideal - to see if it seems like the 19's are holding you up. 24's would be plenty with the properly calibrated maf.

 

[sublime29]

The 19's are going to be right on the edge of not being enough and a bigger fuel pump is needed.You can\t get a pump that is to big so get as big as you can afford without going overboard.Make sure you have a fuel pressure regulator so you can dial it it.

 

[Chris6050]

Ok thats what I figured. I probably go with 24# injectors and a 190 Fuel pump. Who makes the best fuel pumps?

 

[SlowGT]

Walbro pretty much makes all the intank pumps. Check ebay. I'm getting a 255 walbro for $105 delivered. Don't know how much the 190s are going for.