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LXtasy · 06-30-2008, 07:06 PM

Need help to share with friend

355ci 4 bolt main block
Misc mods and internal work or course.

Under light/part throttle it is fine. At WOT it runs pig rich and fills like it stumbles if you try to stall the truck up and floor it. But it picks up after 2500 rpms or so.

Fuel pressure is around 3 psi at idle if I remember and WOT it goes to around 7 or 7.5.

Have not checked timing yet on it. But I am checking mainly if it is the carb that is holding it back. It gets plenty of fuel (can smell it out tailpipes) so that is why I am thinking air delivery.

06-30-2008, 07:06 PM	#1
LXtasy Senior Member Join Date: Dec 2006 Location: Summerville, SC Posts: 9,564	355 carb help Need help to share with friend 355ci 4 bolt main block Misc mods and internal work or course. Under light/part throttle it is fine. At WOT it runs pig rich and fills like it stumbles if you try to stall the truck up and floor it. But it picks up after 2500 rpms or so. Fuel pressure is around 3 psi at idle if I remember and WOT it goes to around 7 or 7.5. Have not checked timing yet on it. But I am checking mainly if it is the carb that is holding it back. It gets plenty of fuel (can smell it out tailpipes) so that is why I am thinking air delivery.