1969 Dart GT 340 EFI E85 Turbo Build

i love the fact that you have been driving all summer.

i'm scared about you upping the boost too much. i know when people get around 15 they usually are ok but when they hit 20 psi boom rods start giving out etc the bottom end blows up lol.

what do you think is the practical limit, how much can you have to still make it last 100k miles

I can't see going above 15, I am thinking 12-14 for the occasional max but 6-8 is more than enough for cruising. Once it is tuned I will install an electronic boost controller to select boost levels in the Fast. With the cam and high compression, the low end power is great and makes the car very drive-able. Getting into the boost on the streets regularly is not practical, so 100k should be doable.