Adding AFR185's to FMS392

[Mark Brye]

Hi everyone,

I have received alot of emails asking for an update on my head swap dyno results. I have been on travel for the last couple of weeks and the dyno shop I used had recently relocated so there dyno had been down. I hope to get the car dyno'd soon now that they have the dyno up and running again. I will post the results once I have the car tuned.
On a side note, I can say that these heads have made a big improvement. I can sure feel it in the seat of the pants. I can't wait to see what a tune does!

[Mark Brye]

Made it back to the dyno today. Original numbers with Xhead 302hp,323tq as delivered from BDR. This had 10-11 air fuel ratio. After only the head swap to AFR185's and no tune, numbers increased to 383hp, 375tq. The air fuel ration leaned out to the 11-12 range. After making about 10 pulls, and playing with timing and jets, I am at 415hp, 415tq.
One thing we did notice, is that my fuel pump is getting near its limits. It has a Carter Electric pump with a gold top. I have tried to find information on it but have not found it anywhere to see what its capacity is.

[tbirdz12]

Nice gain. 37% more HP