'66 Slant Six Turbo Build

mpgmike said
I'm curious about how you're referencing fuel pressure to boost. You need to maintain 4-7 psi above boost pressure for the carb to function. I did an article on Allpar a couple years ago that covered referencing the breather port on the fuel pump to above-carb boost (See the Holler Help section, don't know if I can post links before racking up posts).

Secondly, you must retard timing. I used the MSD-BTM which worked out very well. It's tunable, degrees per psi boost, when it kicks in, etc.

It looks to die for, to say the least. Awesome work!

Mike

I'm using a mallory 4309 fpr. Its referenced right into the back of the intake manifold for a signal. It's set at 5 PSI right now and it rises 1:1 with pressure. I'm sure the initial setting may change once I get it on the dyno.

For the ignition I'm going to use an MSD 6530 programmable. That'll allow me to lock out the mechanical timing and run a custom curve. I'm also putting in a MAP sensor so I can retard for boost.

I be on the dyno by the end of the month if all goes well.