I would recommend getting a set of World torquer S/R's or whatever they're called now . Brand new with all new parts . You can get them in 64 cc chambers to bump the compression too . Or Summit brand . The old heads will almost cost the same as new ones by the time you get them ready . When I was doing lots of stock motors I was throwing away about 1/2 due to cracks etc .

well theses are the heads i have. they are not cracked but dirty would porting them help with any thing. are they good heads though?

unfortunately they are probably small valve , large chamber smog heads . The cracks won't show up til you magnaflux them . That's why I recommended the new heads . For hi perf use you'll need new springs , guides and a valve job probably need them milled . by the time you do all this and add in the time for porting you'll probably spend close to what the new heads cost .

Right...getting new assembled heads would be about the same cost as getting old heads worked on and fitted with new parts. I'd get new ones. I like the cast iron Dart and RHS heads. The RHS heads are nice and also cheaper than Darts. Here's a link to the assembled RHS heads. Not a bad price at all, less than a grand for both assembled pieces. I don't know you exact setup, but these might work for you... http://www.cnc-motorsports.com/produ...58&CtgID=26705

The unfiltered, honest truth is they are absolute crap.

With the other parts you have, you'll be nothing but disappointed if you try to run those heads. There's just no getting around it.

Can't really say without knowing more details on the cam and what you'll be using the car for (as well as details such as transmission and gears), but I'd guess that Victor Jr. is the wrong intake for you as well.

yea for your combo of parts these heads will just frusterate you. they wouldnt be bad for a fairly mild, back yard 383 or the like, but i dont think they can support the flow that your intake and cam can go for. porting them may help a bit, but a set of aftermarket will be much better.

i can understand the part of this is what i have. if the heads have 2.02/ 1.60 valves like mortec.com says they could, then they may be able to do ok, but they are also smog era heads, so they are gonna flow crappy no matter what the valve size pretty much.

i donno, find out what valve size they are, and if its at least not the 1.72/ 1.50 ones, then you can try to make them work.

recommended to go aftermarket irons or the like though to get the power your other parts indicate you want.