Quote:
Originally Posted by DanEC
Gaz64 - I haven't looked but I suspect it has the rubber umbrella seal in the accelerator pumps. On another forum someone suggested taking a dremel and grinding a very shallow grove from outside the umbrella to the relief hole under it. The theory was that it would allow vapor pressure to vent back to the fuel bowl and bowl vent but would seal off when the accelerator pump was activated.
I haven't had a chance to look yet but I wonder if Holley makes a composite accelerator pump cover that doesn't absorb heat so easily?
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Yes, that would work BUT extremely risky, way more accurate to drill a hole.
The place for the bleed orifice is already there just not drilled through.
.013 from memory, number 80 drill.
Gary