I have a 408 stroker (details below) in my 73 Duster, best 60' of 1.673 (slicks) and best 1/4 is 12.26 @ 109.59. I am shifting at 5500, as that seems the best rpm for the lowest time, thus far. Since I am shifting so low, have a "mild" cam and lower compression, I wonder if the M1 single plane airgap is too much intake for the motor. I have a Weiand Stealth (dual plane) sitting on the 340 that came out of the car. Do you think it would be beneficial to low end torque, and 1/4 mile times to swap to the Stealth? I know it won't flow as much, and will hurt top end, but since I'm shifting relatively early...
Thoughts?
Motor details:
408 cast crank stroker from Hughes
9.6:1 compression
93 Octane gas
mild port/polish on Edelnbrock al perf heads, closed chamber, fresh valve job
M1 single plane airgap with gasket match (heads too)
Holley 750 DP with proform center section, jetted 74/84, 3.5 power valve
Comp roller .544/.541 236/242 110 centerline
FBO ignition, ditributor curved to 16 inital, 34 total @ 2900 rpm
Hooker comp 1 5/8" headers (dented bottoms on driver side, naturally) 3" collector
3" pipes into/out of welded Summit 3" mufflers into a-body tips
3000 stall TCI streetmaster
727 manual reverse
3.73 sure grip in a narrowed Dana J
Thoughts?
Motor details:
408 cast crank stroker from Hughes
9.6:1 compression
93 Octane gas
mild port/polish on Edelnbrock al perf heads, closed chamber, fresh valve job
M1 single plane airgap with gasket match (heads too)
Holley 750 DP with proform center section, jetted 74/84, 3.5 power valve
Comp roller .544/.541 236/242 110 centerline
FBO ignition, ditributor curved to 16 inital, 34 total @ 2900 rpm
Hooker comp 1 5/8" headers (dented bottoms on driver side, naturally) 3" collector
3" pipes into/out of welded Summit 3" mufflers into a-body tips
3000 stall TCI streetmaster
727 manual reverse
3.73 sure grip in a narrowed Dana J
