what is the fuel psi ?
some heat sleve may fix the prob.
Haven’t checked fuel psi. My guess is 5-6psi - probably should rig a gauge up and check.
You need to keep the heat from boiling the fuel so try insulation for the fuel lines.Also is the radiator keeping the motor cool? What temp t stat?
I’m running a Flowkooler water pump and 160 degree t’stat. Water temp is 180-185. I recently switched to this setup vs an electric water pump thinking this might help. Hasn’t so far.
Still running exhaust manifolds? If so make sure the exhaust flapper isn't stuck shut.
No - headers.
