Rejetting for reeds and head temp

[m in sc]

regular petcock and everything should flow fine. check for restrictions. my advice is: clamp off 1 line, take the other off, and put a long line on it. put line in a gallon jug, turn fuel on. watch the flow for about 2 mins. if it reduces over that 2 mins, you have a restriction somewhere .

[Scuffed98]

Just performed that test and there was no fuel flow reduction over a 2 minute period. The only indication of flow reduction I got when the tank was near empty on reserve. The line that goes to the RH carb started flowing droplets while the line for the LH carb was still flowing albeit weakly. Although I'm not sure if this is any indication of my issues since I try to keep the tank filled above half. Interestingly when I testing the petcock one port at a time if I pulled off the plug off one of the fuel port with a hose on the other the open fuel port wouldn't spill any gas unless I hooked a fuel line back onto it.

[m in sc]

you need to pinch one line off or cap it completely or it will pull air up through one. this can and will give incorrect results if you dont.  trust me on this. 

[RDnuTZ]

almost sounds like a vapor lock

[quocle603]

Found the old folder for the DG mod that was in the old forum. Here are the files.

[m in sc]

you can also just add cans at the stinger. ive done that mod, it helps

[SoCal250]

Many years ago the modification of DG pipes to an exposed stinger with cans on the end was called the "Coolhead Mod" after the first guy who did it and posted on USA2Strokers. I think I still have his write up somewhere. A few years ago I stopped by his house on my way up to Laguna to say hello.

[m in sc]

yup. that was the standard for a while. especially when dgs were still under 400 new a set.