Insulating Against Heat on the Carb

i have edelbrock 1407 750 cfm with 1 inch alumin spacer, dual plane alum manifold on 400cid BB. electric fuel pump.... went to get burger with wife, @90 outside early eve, drove 15 miles parked ate said burger, came out did the hard start, got into the street and starves for fuel (temp at start up on gauge 198 degrees).... drove @ 1 mile and got it cooling and it got better..... DAMN THE ALUMINUM spacer!!!!!!!!!!! when i park the car and come back after 10 min the fuel filter is about bone dry.... QUESTIION^^^^^^ replace the alum spacer with WOOD or PLASTIC ??? does that coolplate do well? I have ^ pack big hood scoop so no problem with spacers and height....