However a tbi doesn't have fuel rails or a return line either
Yeah you’re right there. Is a conversion kit worth the money?
Nor does it have a choke, accelerator pump or idle mixture screws, which are visible in the pics
Nope,....
No. You will never see enough of a savings to ever recoup the money
No not to TBI but you will see some gain if you swap out the 2 bbl for a 4 bbl . would need an intake manifold too . I did that with my 5.0 runs very well and has great midrange throttle response. The eddelbrock 1409 is pretty good right out of the box on a 5.0
What manifold did you use?
Would a 4bbl not be better?
If a 2bbl can provide all the Airflow required, a properly set up 4 bbl will not provide more. The 5 liter spinning at 5000 rpm with a Volumetric Efficiency of 75-80% needs about 350cfm, so like I said, the 2bbl Holley is very close to that. However a small 4bbl, around 400cfm will have smaller bores, and that can result in better throttle response, and better atomization of the fuel at low engine speeds and reduce the chance of leaning out(flat spots) as the throttle is opened
Cool that’s the one I was looking at too. Thank you. I’ll go this route next off season.I used this one https://www.michiganmotorz.com/5-7l-4-bbl-vortec-cast-iron-intake-manifold-1996-current
any of these carbed intakes with exception of merc one you already own will work well. Certainly other places to buy them as well.
So, the 4 barrel would be better? I’m getting confused.
