Just finished the bed floor on My 1954 chevy 3100 and it looks GREAT!! My question deals with the tailpipe heat sheild under the bed floor. I understand the tailpipe heat sheild go"s on theunderside above the rear axle . HOW MUCH clearence do I need between the Heatsheild and the tailpipe should I use HI -temp paint on the heat sheild ? How hot does it get ? dont want to set my bed floor on fire!!!!! THANK YOU ALL IN ADVANCE!!!!!!!!!!!!!!!!!!