Post your 12 second small block combos

Hi I am new to FABO. Have watched this thread a while and decided to join in.

Even though this is not a 3.38 stroke combo, here goes. My original goal for car was to get into 12.80s but the car will do that easily, new goal is 11s.

1971 Dodge Demon, all steel, factory glass, no carpet(yet), 6point rollbar, subframe connectors. Have removed 150# from front,(light brakes, man steering, light wheels. I plan on going NHRA Stock class next year. Car is new, still tuning. Run on pump premium gas only.

My weight, 150#
Car weight 3100#
Gears, Dana60 4.56
Tires, MT 29.5/9/15 slicks 28 in front
3000 stall converter
904 w/low gearset

Engine is Mopar 380/360 shortblock out of bag no prep.($1000) Heads stock untouched 340 from Aerohead.($500 pair)

9.0 to 1 comp
508\292 hyd cam
750 Proform carb
TTI stepped headers
Caltrac Chassis

Last outing it was 104 deg out at 7 PM with 60% humidity.

Results were 12.40 - 12.41 @ 108.6 MPH all night. 60' @ 1.66-1.68

I shift at 5800 and run thru traps at 6100. I am getting valve float above 6000 so that is to be addressed. I just changed to ATI 8" 4500 stall, hope to see 11s soon, once the weather cools down.

I have enjoyed seeing how many different ways people use to acheive the same results, cool!

Chuck.

My new converter from ATI went in. Took car to Speedworld last night.
The temp outside was 85.
60' improved to 1.59.
ET 11.81 (6 tenths lower)
MPH 113.0 (5 MPH increase) same engine speed, just less converter slip.
I thought that was great for just a converter change.
I made no other changes. Drove car the same way. I still expect to see improvement with valve springs.
Chuck.