OK took it to work; at 80 MPH car is pulling about 9-10" vacuum and spinning at 1900 RPM. The morning temp was low 70s and afternoon 81 degrees. 51 miles round trip MPG was slightly over 15 with no hood! AFR high 14s. Those two overdrive gears on the t56 work! Gonna fit the intercooler on and machine the compressor housing for a 76 mm wheel then Dyno time!
I put a guage on the exhaust pre turbine and got about a 1-1 back pressure to boost ratio. Not sure if thats right but after the new wheel goes on I'll see if I need a smaller A/R for the exhaust turbine housing currently a T6 1.15 A/R. Love the car. A 1957 farilane y- block turbo will be next (I know its not an FE
) If anyone is interseted in the jetting specs and mods of the Holley I can post them.
BTW I'm running 10-1 compression and no pinging on 91 octane on my tune.
Im using a Snow performance Boost cooler stage 1 and using the 625 ml/min nozzle. (pump says 300 psi)