Raising power band with AFR 180's?

[MeanTA]

IIRC these heads were around 290 @ .600, but that was back in 2006 also. If that's inaccurate then my LE TFS heads that flowed 305 @ .600 are inaccurate too. And my head numbers are right in line with others.

That's why i will go buy your info. I trust the info is accurate.

I would wait before CALL911 dynos his car and then take it with a grain of salt as he made a few other changes.

I would run a 383 under them, its a lot easier to swap heads later on than to swap cranks.

My car will be seeing 6,000+ pulls. And at times longer then a typical car sees in the 1/4. With track days and standing mile runs.

I don't think the 28 inches will matter much with a sub 3,000 pound car

[CALL911]

MeanTA, the flow numbers are accurate. If you want, I can get them put back on a flow bench for you for $40.

I think they will fit the bill of what you are looking to do. Although on my setup the power band would fall off about 6,000 RPM, they still were making good power beyond 6,000 RPM. When I would race the car, I always would bring it up to 6500 RPM to shift (7,000 RPM in 4th gear at the track). I also made plenty of top end pulls with the car (well beyond the 1/4 mile point), and they still performed well.

Heres a top end pull during a race vs a buddies mustang *link fixed> http://www.streetfire.net/video/supe...z28_148834.htm

[MeanTA]

@CALL911 i totally trust you and Fastbird. No need to test them again. This is why i went with your heads..... The heads have proven themselves to make power under boost. And thats what i needed

P.S. There will be a HUGE chunk of money coming your way in a week

[Featherburner]

Just curious, who ported these after TPIS?

[MeanTA]

Just curious, who ported these after TPIS?

Fonce Performance.

[Featherburner]

Fonce Performance.

Huh, Fonse is about an hour from me.

[Fastbird]

Fonse didn't do any port work to these to my knowledge. AFAIK they are as CNC'd from TPIS.

Posted from my Rooted and ICS'd Rezound

[CALL911]

Sean, the heads were CNC'd by TPIS, then Al Jr. had the heads further ported while he had my motor at Fonse performance.

[Featherburner]

Fonse didn't do any port work to these to my knowledge. AFAIK they are as CNC'd from TPIS.

Posted from my Rooted and ICS'd Rezound

Well, from TPIS they flow about 260 cfm.

Sean, the heads were CNC'd by TPIS, then Al Jr. had the heads further ported while he had my motor at Fonse performance.

Do you recall if Al Jr. sent them out or did they port them there at Fonse?

[CALL911]

Well, from TPIS they flow about 260 cfm.

Do you recall if Al Jr. sent them out or did they port them there at Fonse?

I don't recall as this was a few years back. I just remember having them done and flow benched afterwards.