Has anyone else had trouble with Edelbrock carbs flooding?
I suffered with fuel starvation on the Rocket running the original mech fuel pump. This improved with a facet electric pump, but the pressure on them is around 8psi. Edelbrock carbs should be around 5psi. So, fitted a Filter king that I had kept for just such a problem. This helped with higher rpm, but still floods up at idle or after a fast run.No real grunge in the filters thankfully. Ive also fitted a phenolic insulator spacer to stop heat sink. The 303 is a big chunk of engine on a hot day.
I checked pressure with a gauge connected into the pipe directly, not a tee piece. Even with pressure backed down to 4psi it is
still flooding. I 've checked the float heights. The Needle valves don't look bad and seem to seal when blown through, but not 100% happy with them.Its a float related problem.
My thought is the viton tipped needle valves play up with modern fuel (got some new heavier duty sprung off road ones on order..)
running out of ideas other than that. 8mpg just rubs it in . Anyone got any thoughts? Thanks, Jim
Ooops, should be in Tech discussion , sorry.