More cold weather inspiration!
 

Put your drumstick in this port! TFS heads for the 347 flowing a spankin' 305 cfm!

http://home.attbi.com/~lemanswinner/november/tfs1.jpg


Happy Thanksgiving!

Nice, I might have to stop by again. Going to the dyno soon?

Do you still need that battery box?

Nice port work ! With that much volume it'll be a high rpm engine, over 7,500 rpm. You didn't say what rear gear your running, needs to be a steep gear to get off the line without bogging.
Perry.:cool:

Perry,

Why would high volume cause bogging down at low rpm's?

Rich

Rich,
The trick flow heads are mostly for racing. The AFR heads with 185 ports are a hot setup for a 5 liter and the new Roush 200 heads are good for 302's or 351's. I dyno'd my '87 5 liter mustang , it made more hp and torque with the stock cam and heads up to 3,800 rpm.Those big 305's will start haulin from 4,000 to 8,500 on a 347. Carbs work mostly on vaccuum/or lack of it under the carb and how much air[volume ] is going through it. With 305 intakes it is more like a big block chev head[[merlin heads are 320 intake cfm]They work good on 454's and 502's. The webers will have too much volume,not enough velocity, and the gas injested at LOWER rpm with the big ports the gas will 'fall' out of the air stream and puddle in the ports.This is more pronounced in a separate runner manifold like webers as the air will only be moving during the intake stroke with the intake valve open,say 90 degrees plus 60 more for overlap= 150 degrees,maybe more on a big cam. The rest of the time , 720 degrees minus the intake opening of 150 = 570 degrees of sequece ,the air will stop and large amounts of fuel will drop out of the air. The faster the rpm the better the flow of air and gas and it will overcome the puddling effect. So much for theory eh, webers/heads will made awesome power on the top end.
Perry.:cool:

Right'o
 

Actually, the picture is deceiving. The port volume is about 185cc. These are the standard castings not the R models.

Here are the flow numbers...

http://www.totalengineairflow.com/pr...h_tfstw185.jpg


The car is so light, I'm not too worried about the low end. My final works out to be 4:10. With 5th being an overdrive highway rpm works out to about 2600 @ 65 mph.

Sorry !
I thought you had 305 c.c. ports. The trick flow heads you have are perfect! So are the gears,you should have a nickname 'Rocketman' !
:3DSMILE:

Can wait to see & especially hear your GT!