well i just swapped my engine to carb i got a 670 avenger and a rpm intake, with all msd ignition, and i have a holley cam in there with .509 lift out of the systemax kit, so my heads i had are garbage now so should i go with some patriot heads or edelbrock rpm heads for the price?

 

Cam specs are, or Holley cam part number is?

TFS heads would be a better choice regardless..... IMHO that is.

 

stay aWAY FROM PATRIOT heads...........try afr or tfs

 

cam specs are advertised Duration (degrees) 276 280
Duration @ 0.050” (degrees 221 223
Valve Lift (inches) 0.509 0.509
Lobe Separation Angle (degrees) 112
Opens (degrees) 3.5 BTDC 48.5 BBDC
Closes (degrees) 37.5 ABDC -5.5 ATDC

so you think afr or tfs over the edelbrock rpm heads for sure eh?

 

definately, I'd go either 185 afr's or tfs "fast as cast" heads.......both will support a few different build expecially if you wanna stroke it later on

 

oh yea the partriot heads are junk!!! trickflow and afr are both good choices

 

The edelbrock head is an "ok" head but isn't all that but with the cam and intake set-up would work fine. For the same money you can get into a TrickFlow head that is a much better design. If you plan on sticking with your cubic inch, cam and induction I think the AFR 165's would do great as well. If you plan on putting some extra stroke to it in the near future I would move into a larger head such as the AFR 185 or 190 TrickFlow. The Edelbrock RPM eXtreme is a super head but for the kind of money they go for there are better options. I'd also advise you to skip the Patriot heads.

 

dude just stick with the heads I assume you have the edelbrock heads now.......hell you could put 2-400 into them and come out as good as spending 1200 on a set of TFS heads....

 

wouldnt trickflows be better if he plans to stroke it later? I thought they had more meat on them than afrs so they could be ported later to take advantage of the large displancment.

 

correct you see trickflows on street cars and 8-9sec drag cars. it just depends on how deep your pockets are