Did similar heat shields with my carbs, they really need some air flow over them if you can.

Nick's point on low vs. high pressure systems is very true. And Colin's on how carbs gain heat from the exhaust - are heat deflectors in place between the exhaust and the float chambers, thusly?  Random picture of such heat shields, from the net.

Looking back to that era, we got the Mini 1000, Austin 1100, Austin "America" (1300), Austin 1800, Austin Marina (NOT Morris), Triumph Spitfire, GT6, TR6 and predecessors, MGB and Midgets, Rover SD1, Land Rover's  and E-Type Jags. Supposedly we got the Stag as well but they are so rare I don't think they sold in large numbers. And I don't recall many SD1's on the road here either. 

I'm not sure the exact reasons but my perception is that the Lucas bullet connectors, lamp sockets, etc. were more prone to problems than their American counterparts. Intermittent connections and lamp sockets due to corrosion. (Within the 1966 to 1980 range of British and US vehicles I've had. 5 UK vs 4 US.  I want to get my '78 on the road so initially I'll just clean connectors and sockets to get it running and past inspection. But over time I'll be replacing all the Lucas Bullet and other connectors with AMP style, sealed connectors where possible. (See image.) Not sure about how to prevent continual corrosion on the lamp sockets. It can be difficult with lead contacts on the bulbs. 

Ah, so you're also doing double duty as the bartender too!  And both are appreciated, really!   

None taken whatsoever. I just wondered about the potential for intentional attacks.  But you got it up, running and in the process, it appears the "BOT" had been slowing the site down for awhile, and the host let it slide. (Hence the slow page loads.)  Now you just need to find spare time to get an LBC running. 👍 And over time, it gets worse. Eventually you need to find the energy to get an LBC running. (Age)

Paul, I'm not entirely convinced that insulating the fuel line will make a lot of difference although that heat reflective sleeving Nick pointed out would probably be your best bet. I suspect that most of the heat gain to the fuel, especially in traffic where the flow is low comes from the pump and carb float bowls. Especially the carbs as they sit directly above the exhaust. Can't remember, but does your 6 have an electric fan? If not I suspect that might help, just by moving air around under the bonnet.

Not really done much of it myself. For fuel lines. Little bit on starter cables. Good idea in principle. Finding effective insulation at a sensible prices may be challenging.    bit of fairly random internet scraping produced these https://hilltop-products.co.uk/heat-reflective-sleeving-hrs-12.html?utm_source=google_shopping&ppc_keyword=&gad_source=1&gad_campaignid=21545364654&gbraid=0AAAAAD_OVsFrPvDoJTKXU-Dje95sJ4d2P&gclid=CjwKCAiAv5bMBhAIEiwAqP9GuNzdaUgFEEFfdtUDfU3K0MoQvuh4TaD2zkyP58NcMzSsWIoleP6mLhoC1VQQAvD_BwE https://www.ebay.co.uk/itm/152428198043?_ul=GB&mkevt=1&mkcid=1&mkrid=710-53481-19255-0&campid=5338365712&toolid=20006&customid=CjwKCAiAv5bMBhAIEiwAqP9GuADPNJWN_UMYfH2l1j9Nu-JuZlB4fOg-9jXQvfsDVbyLXAcTzeJgnxoCswUQAvD_BwE|0AAAAA9SEzLMNVaOsUsaY6_vsuXWHAt2E9|null&gclid=CjwKCAiAv5bMBhAIEiwAqP9GuADPNJWN_UMYfH2l1j9Nu-JuZlB4fOg-9jXQvfsDVbyLXAcTzeJgnxoCswUQAvD_BwE&gbraid=0AAAAA9SEzLMNVaOsUsaY6_vsuXWHAt2E9&loc_physical_ms=9045690&adtype=pla https://www.burtonpower.com/black-high-heat-silicon-heat-sleeving-7mm-dia-x-0-5m-funk-sitb-0705.html?utm_source=google&utm_medium=prodlistad&utm_campaign=gb_feed?WbRf=ProdListAd&gad_source=1&gad_campaignid=213615082&gbraid=0AAAAAD9KqFo-NKLEO4Zc7AeZfkFdX1j54&gclid=CjwKCAiAv5bMBhAIEiwAqP9GuChb1ElEWjp84s51DeSa5G3wCMTBfFyQD4engOAgk1y_OtptRv1RBxoCcCQQAvD_BwE   I would suggest minimal gains on a low pressure system feeding carbs, especially where there’s no return loop.  More appropriate for injection setups returning warmed fuel to the tank.

Thank you. yes, I did. Almost done. Wallace and Hutch the rabbit just need a wee bit more painting to finish.

Nice. Did you build it?