421 Stroker with Trick Flow Heads/Intake Dyno - Redux

Another update:

I decided to make a few additional changes before Summer. I ordered a new set of pistons from Ross which will bump my C/R to 12.25:1. I also had Bullet regrind the latest cam to increase the duration and lift. Only cost $200.00 to have it reground so it was a no-brainer.

New cam specs:

Grind Number CRA 316/322-10HR CHRYSLER 'A' 273-360

Part Number 504000 SN T57719
Duration at .050 260int 266exh
Lobe Lift 0.3858 0.3820
Separation 110

OP CL OP CL
Timing Events @.050 24.0 56.0 67.0 19.0

Duration @.006 316int 322exh
Gross Valve lift 0.5790 0.5730
Rocker Ratio 1.5 1.5

Intake Lobe to 106
.700"WD

With the 1.6 rockers the lift came out to 0.617

I ended up keeping the 110 LSA because this will be a nitrous motor, and the consensus is the wider RPM range will benefit when I spray it.

With all of the changes, I'm considering bringing the motor back to the dyno to get a comparison between the different cams and bumping the compression. If I can scrounge up some extra ca$h to do it, I think it would be fun. I may even bring the NX kit with me :)