| Vapor lock driving me crazy « on: Today at 03:44:41 PM » |
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I have been fighting vapor lock for quite some time on the real hot days. I can watch the fuel boil in the glass fuel filter and the sight glasses on the carb don't show any fuel once it happens, so I am very confident that it is vapor lock. The temp gauge runs at 180 or so, so that is fine.
I have the valley pan with the blocked off heat crossover installed
I installed a 1" phenolic carb spacer
I have rerouted the fuel lines away from all heat sources
I am at roughly 5500 foot elevation, so the gas boils real easy up here.
I have the carter high volume mechanical fuel pump, but the stock one does it too.
I could install an electric fuel pump, but then the noise and vibration might make me shoot myself.
The motor is:
440 bored 40 over with a balanced 500 inch stroker kit installed
Stock fresh 906 heads.
10.52 static compression.
edelbrock performer rpm intake
Edelbrock performer cam
Proform 850 dp
Stock converter
3.91 sure grip
18 initial timing 34 total
3" exhaust all the way back from the headers with an X pipe in the middle
MSD ignition
I have heard that the fuel vapor separator may help, but that there used to be some that were made incorrectly. Has that been corrected, and if so who has the good ones, or are they all good now?
Does anyone know of anything else to try to fix this?
Thx
Jim
